diff --git a/android/api_domain.go b/android/api_domain.go
index 587ceae..0603c70 100644
--- a/android/api_domain.go
+++ b/android/api_domain.go
@@ -107,24 +107,3 @@
 	bazelLabels := BazelLabelForModuleDepsWithFn(ctx, contributions, addSuffix)
 	return bazel.MakeLabelListAttribute(bazelLabels)
 }
-
-type bazelApiDomainAttributes struct {
-	Cc_api_contributions   bazel.LabelListAttribute
-	Java_api_contributions bazel.LabelListAttribute
-}
-
-var _ ApiProvider = (*apiDomain)(nil)
-
-func (a *apiDomain) ConvertWithApiBp2build(ctx TopDownMutatorContext) {
-	props := bazel.BazelTargetModuleProperties{
-		Rule_class:        "api_domain",
-		Bzl_load_location: "//build/bazel/rules/apis:api_domain.bzl",
-	}
-	attrs := &bazelApiDomainAttributes{
-		Cc_api_contributions:   contributionBazelAttributes(ctx, a.properties.Cc_api_contributions),
-		Java_api_contributions: contributionBazelAttributes(ctx, a.properties.Java_api_contributions),
-	}
-	ctx.CreateBazelTargetModule(props, CommonAttributes{
-		Name: ctx.ModuleName(),
-	}, attrs)
-}
diff --git a/android/bazel.go b/android/bazel.go
index 732419b..4516396 100644
--- a/android/bazel.go
+++ b/android/bazel.go
@@ -600,10 +600,10 @@
 }
 
 func registerBp2buildConversionMutator(ctx RegisterMutatorsContext) {
-	ctx.TopDown("bp2build_conversion", bp2buildConversionMutator).Parallel()
+	ctx.BottomUp("bp2build_conversion", bp2buildConversionMutator).Parallel()
 }
 
-func bp2buildConversionMutator(ctx TopDownMutatorContext) {
+func bp2buildConversionMutator(ctx BottomUpMutatorContext) {
 	bModule, ok := ctx.Module().(Bazelable)
 	if !ok {
 		ctx.MarkBp2buildUnconvertible(bp2build_metrics_proto.UnconvertedReasonType_TYPE_UNSUPPORTED, "")
@@ -647,17 +647,6 @@
 	}
 }
 
-func registerApiBp2buildConversionMutator(ctx RegisterMutatorsContext) {
-	ctx.TopDown("apiBp2build_conversion", convertWithApiBp2build).Parallel()
-}
-
-// Generate API contribution targets if the Soong module provides APIs
-func convertWithApiBp2build(ctx TopDownMutatorContext) {
-	if m, ok := ctx.Module().(ApiProvider); ok {
-		m.ConvertWithApiBp2build(ctx)
-	}
-}
-
 // GetMainClassInManifest scans the manifest file specified in filepath and returns
 // the value of attribute Main-Class in the manifest file if it exists, or returns error.
 // WARNING: this is for bp2build converters of java_* modules only.
diff --git a/android/filegroup.go b/android/filegroup.go
index a4bbcae..5a8c4b9 100644
--- a/android/filegroup.go
+++ b/android/filegroup.go
@@ -86,12 +86,6 @@
 	Strip_import_prefix *string
 }
 
-// api srcs can be contained in filegroups.
-// this should be generated in api_bp2build workspace as well.
-func (fg *fileGroup) ConvertWithApiBp2build(ctx TopDownMutatorContext) {
-	fg.ConvertWithBp2build(ctx)
-}
-
 // ConvertWithBp2build performs bp2build conversion of filegroup
 func (fg *fileGroup) ConvertWithBp2build(ctx Bp2buildMutatorContext) {
 	srcs := bazel.MakeLabelListAttribute(
diff --git a/android/module.go b/android/module.go
index ceb54de..74b8cb8 100644
--- a/android/module.go
+++ b/android/module.go
@@ -1272,7 +1272,7 @@
 	m.base().commonProperties.CreateCommonOSVariant = true
 }
 
-func (attrs *CommonAttributes) fillCommonBp2BuildModuleAttrs(ctx *topDownMutatorContext,
+func (attrs *CommonAttributes) fillCommonBp2BuildModuleAttrs(ctx *bottomUpMutatorContext,
 	enabledPropertyOverrides bazel.BoolAttribute) constraintAttributes {
 
 	mod := ctx.Module().base()
@@ -1430,7 +1430,7 @@
 // If compile_mulitilib is set to
 // 1. 32: Add an incompatibility constraint for non-32 arches
 // 1. 64: Add an incompatibility constraint for non-64 arches
-func addCompatibilityConstraintForCompileMultilib(ctx *topDownMutatorContext, enabled *bazel.LabelListAttribute) {
+func addCompatibilityConstraintForCompileMultilib(ctx *bottomUpMutatorContext, enabled *bazel.LabelListAttribute) {
 	mod := ctx.Module().base()
 	multilib, _ := decodeMultilib(mod, mod.commonProperties.CompileOS, ctx.Config().IgnorePrefer32OnDevice())
 
@@ -1456,7 +1456,7 @@
 
 // Check product variables for `enabled: true` flag override.
 // Returns a list of the constraint_value targets who enable this override.
-func productVariableConfigEnableAttribute(ctx *topDownMutatorContext) bazel.LabelListAttribute {
+func productVariableConfigEnableAttribute(ctx *bottomUpMutatorContext) bazel.LabelListAttribute {
 	result := bazel.LabelListAttribute{}
 	productVariableProps, errs := ProductVariableProperties(ctx, ctx.Module())
 	for _, err := range errs {
diff --git a/android/mutator.go b/android/mutator.go
index 336f8f7..57ff1e0 100644
--- a/android/mutator.go
+++ b/android/mutator.go
@@ -38,13 +38,6 @@
 	registerMutatorsForBazelConversion(ctx, bp2buildMutators)
 }
 
-// RegisterMutatorsForApiBazelConversion is an alternate registration pipeline for api_bp2build
-// This pipeline restricts generation of Bazel targets to Soong modules that contribute APIs
-func RegisterMutatorsForApiBazelConversion(ctx *Context, preArchMutators []RegisterMutatorFunc) {
-	bp2buildMutators := append(preArchMutators, registerApiBp2buildConversionMutator)
-	registerMutatorsForBazelConversion(ctx, bp2buildMutators)
-}
-
 func registerMutatorsForBazelConversion(ctx *Context, bp2buildMutators []RegisterMutatorFunc) {
 	mctx := &registerMutatorsContext{
 		bazelConversionMode: true,
@@ -284,7 +277,6 @@
 
 type TopDownMutatorContext interface {
 	BaseMutatorContext
-	Bp2buildMutatorContext
 
 	// CreateModule creates a new module by calling the factory method for the specified moduleType, and applies
 	// the specified property structs to it as if the properties were set in a blueprint file.
@@ -300,6 +292,7 @@
 
 type BottomUpMutatorContext interface {
 	BaseMutatorContext
+	Bp2buildMutatorContext
 
 	// AddDependency adds a dependency to the given module.  It returns a slice of modules for each
 	// dependency (some entries may be nil).
@@ -711,14 +704,14 @@
 	ctx.BottomUp("deps", depsMutator).Parallel()
 }
 
-func (t *topDownMutatorContext) CreateBazelTargetModule(
+func (t *bottomUpMutatorContext) CreateBazelTargetModule(
 	bazelProps bazel.BazelTargetModuleProperties,
 	commonAttrs CommonAttributes,
 	attrs interface{}) {
 	t.createBazelTargetModule(bazelProps, commonAttrs, attrs, bazel.BoolAttribute{})
 }
 
-func (t *topDownMutatorContext) CreateBazelTargetModuleWithRestrictions(
+func (t *bottomUpMutatorContext) CreateBazelTargetModuleWithRestrictions(
 	bazelProps bazel.BazelTargetModuleProperties,
 	commonAttrs CommonAttributes,
 	attrs interface{},
@@ -726,7 +719,7 @@
 	t.createBazelTargetModule(bazelProps, commonAttrs, attrs, enabledProperty)
 }
 
-func (t *topDownMutatorContext) MarkBp2buildUnconvertible(
+func (t *bottomUpMutatorContext) MarkBp2buildUnconvertible(
 	reasonType bp2build_metrics_proto.UnconvertedReasonType, detail string) {
 	mod := t.Module()
 	mod.base().setBp2buildUnconvertible(reasonType, detail)
@@ -742,7 +735,7 @@
 	Actual *bazel.LabelAttribute
 }
 
-func (t *topDownMutatorContext) CreateBazelTargetAliasInDir(
+func (t *bottomUpMutatorContext) CreateBazelTargetAliasInDir(
 	dir string,
 	name string,
 	actual bazel.Label) {
@@ -763,7 +756,7 @@
 // Returns the directory in which the bazel target will be generated
 // If ca.Dir is not nil, use that
 // Otherwise default to the directory of the soong module
-func dirForBazelTargetGeneration(t *topDownMutatorContext, ca *CommonAttributes) string {
+func dirForBazelTargetGeneration(t *bottomUpMutatorContext, ca *CommonAttributes) string {
 	dir := t.OtherModuleDir(t.Module())
 	if ca.Dir != nil {
 		dir = *ca.Dir
@@ -781,7 +774,7 @@
 	return dir
 }
 
-func (t *topDownMutatorContext) CreateBazelConfigSetting(
+func (t *bottomUpMutatorContext) CreateBazelConfigSetting(
 	csa bazel.ConfigSettingAttributes,
 	ca CommonAttributes,
 	dir string) {
@@ -867,7 +860,7 @@
 	return ConvertApexAvailableToTags(noTestApexes)
 }
 
-func (t *topDownMutatorContext) createBazelTargetModule(
+func (t *bottomUpMutatorContext) createBazelTargetModule(
 	bazelProps bazel.BazelTargetModuleProperties,
 	commonAttrs CommonAttributes,
 	attrs interface{},
diff --git a/android/proto.go b/android/proto.go
index fc21d01..c449a87 100644
--- a/android/proto.go
+++ b/android/proto.go
@@ -289,7 +289,7 @@
 				attrs.Strip_import_prefix = proptools.StringPtr("")
 			}
 
-			tags := ApexAvailableTagsWithoutTestApexes(ctx.(TopDownMutatorContext), ctx.Module())
+			tags := ApexAvailableTagsWithoutTestApexes(ctx, ctx.Module())
 
 			moduleDir := ctx.ModuleDir()
 			if !canonicalPathFromRoot {
diff --git a/bp2build/testing.go b/bp2build/testing.go
index a810709..dfd4d57 100644
--- a/bp2build/testing.go
+++ b/bp2build/testing.go
@@ -571,23 +571,6 @@
 	)
 }
 
-var _ android.ApiProvider = (*customModule)(nil)
-
-func (c *customModule) ConvertWithApiBp2build(ctx android.TopDownMutatorContext) {
-	props := bazel.BazelTargetModuleProperties{
-		Rule_class: "custom_api_contribution",
-	}
-	apiAttribute := bazel.MakeLabelAttribute(
-		android.BazelLabelForModuleSrcSingle(ctx, proptools.String(c.props.Api)).Label,
-	)
-	attrs := &customBazelModuleAttributes{
-		Api: *apiAttribute,
-	}
-	ctx.CreateBazelTargetModule(props,
-		android.CommonAttributes{Name: c.Name()},
-		attrs)
-}
-
 // A bp2build mutator that uses load statements and creates a 1:M mapping from
 // module to target.
 func customBp2buildOneToMany(ctx android.Bp2buildMutatorContext, m *customModule) {
diff --git a/cc/bp2build.go b/cc/bp2build.go
index 569f721..5dc119e 100644
--- a/cc/bp2build.go
+++ b/cc/bp2build.go
@@ -223,7 +223,7 @@
 }
 
 // bp2BuildParseLibProps returns the attributes for a variant of a cc_library.
-func bp2BuildParseLibProps(ctx android.BazelConversionPathContext, module *Module, isStatic bool) staticOrSharedAttributes {
+func bp2BuildParseLibProps(ctx android.Bp2buildMutatorContext, module *Module, isStatic bool) staticOrSharedAttributes {
 	lib, ok := module.compiler.(*libraryDecorator)
 	if !ok {
 		return staticOrSharedAttributes{}
@@ -232,12 +232,12 @@
 }
 
 // bp2buildParseSharedProps returns the attributes for the shared variant of a cc_library.
-func bp2BuildParseSharedProps(ctx android.BazelConversionPathContext, module *Module) staticOrSharedAttributes {
+func bp2BuildParseSharedProps(ctx android.Bp2buildMutatorContext, module *Module) staticOrSharedAttributes {
 	return bp2BuildParseLibProps(ctx, module, false)
 }
 
 // bp2buildParseStaticProps returns the attributes for the static variant of a cc_library.
-func bp2BuildParseStaticProps(ctx android.BazelConversionPathContext, module *Module) staticOrSharedAttributes {
+func bp2BuildParseStaticProps(ctx android.Bp2buildMutatorContext, module *Module) staticOrSharedAttributes {
 	return bp2BuildParseLibProps(ctx, module, true)
 }
 
@@ -288,7 +288,7 @@
 }
 
 // Parses properties common to static and shared libraries. Also used for prebuilt libraries.
-func bp2buildParseStaticOrSharedProps(ctx android.BazelConversionPathContext, module *Module, lib *libraryDecorator, isStatic bool) staticOrSharedAttributes {
+func bp2buildParseStaticOrSharedProps(ctx android.Bp2buildMutatorContext, module *Module, lib *libraryDecorator, isStatic bool) staticOrSharedAttributes {
 	attrs := staticOrSharedAttributes{}
 
 	setAttrs := func(axis bazel.ConfigurationAxis, config string, props StaticOrSharedProperties) {
@@ -334,7 +334,7 @@
 	attrs.Srcs_c = partitionedSrcs[cSrcPartition]
 	attrs.Srcs_as = partitionedSrcs[asSrcPartition]
 
-	attrs.Apex_available = android.ConvertApexAvailableToTagsWithoutTestApexes(ctx.(android.TopDownMutatorContext), apexAvailable)
+	attrs.Apex_available = android.ConvertApexAvailableToTagsWithoutTestApexes(ctx, apexAvailable)
 
 	attrs.Features.Append(convertHiddenVisibilityToFeatureStaticOrShared(ctx, module, isStatic))
 
@@ -1143,7 +1143,7 @@
 	compilerAttrs compilerAttributes,
 ) *bazel.LabelAttribute {
 	var aidlLibsFromSrcs, aidlFiles bazel.LabelListAttribute
-	apexAvailableTags := android.ApexAvailableTagsWithoutTestApexes(ctx.(android.TopDownMutatorContext), ctx.Module())
+	apexAvailableTags := android.ApexAvailableTagsWithoutTestApexes(ctx, ctx.Module())
 
 	if !aidlSrcs.IsEmpty() {
 		aidlLibsFromSrcs, aidlFiles = aidlSrcs.Partition(func(src bazel.Label) bool {
@@ -1283,7 +1283,7 @@
 	la.implementationDeps.Append(staticExcludesLabelList)
 }
 
-func (la *linkerAttributes) bp2buildForAxisAndConfig(ctx android.BazelConversionPathContext, module *Module, axis bazel.ConfigurationAxis, config string, props *BaseLinkerProperties) {
+func (la *linkerAttributes) bp2buildForAxisAndConfig(ctx android.Bp2buildMutatorContext, module *Module, axis bazel.ConfigurationAxis, config string, props *BaseLinkerProperties) {
 	isBinary := module.Binary()
 	// Use a single variable to capture usage of nocrt in arch variants, so there's only 1 error message for this module
 	var axisFeatures []string
@@ -1490,7 +1490,7 @@
 // Note that this is an anti-pattern: The config_setting should be created from the apex definition
 // and not from a cc_library.
 // This anti-pattern is needed today since not all apexes have been allowlisted.
-func createInApexConfigSetting(ctx android.TopDownMutatorContext, apexName string) {
+func createInApexConfigSetting(ctx android.Bp2buildMutatorContext, apexName string) {
 	if apexName == android.AvailableToPlatform || apexName == android.AvailableToAnyApex {
 		// These correspond to android-non_apex and android-in_apex
 		return
@@ -1587,13 +1587,13 @@
 	return exists && ctx.OtherModuleType(mod) == "ndk_library"
 }
 
-func SetStubsForDynamicDeps(ctx android.BazelConversionPathContext, axis bazel.ConfigurationAxis,
+func SetStubsForDynamicDeps(ctx android.Bp2buildMutatorContext, axis bazel.ConfigurationAxis,
 	config string, apexAvailable []string, dynamicLibs bazel.LabelList, dynamicDeps *bazel.LabelListAttribute, ind int, buildNonApexWithStubs bool) {
 
 	// Create a config_setting for each apex_available.
 	// This will be used to select impl of a dep if dep is available to the same apex.
 	for _, aa := range apexAvailable {
-		createInApexConfigSetting(ctx.(android.TopDownMutatorContext), aa)
+		createInApexConfigSetting(ctx, aa)
 	}
 
 	apiDomainForSelects := []string{}
diff --git a/cc/cc.go b/cc/cc.go
index 81a6cd6..1896766 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -4273,24 +4273,6 @@
 	}
 }
 
-var _ android.ApiProvider = (*Module)(nil)
-
-func (c *Module) ConvertWithApiBp2build(ctx android.TopDownMutatorContext) {
-	if c.IsPrebuilt() {
-		return
-	}
-	switch c.typ() {
-	case fullLibrary:
-		apiContributionBp2Build(ctx, c)
-	case sharedLibrary:
-		apiContributionBp2Build(ctx, c)
-	case headerLibrary:
-		// Aggressively generate api targets for all header modules
-		// This is necessary since the header module does not know if it is a dep of API surface stub library
-		apiLibraryHeadersBp2Build(ctx, c)
-	}
-}
-
 // Defaults
 type Defaults struct {
 	android.ModuleBase
diff --git a/cc/library.go b/cc/library.go
index b9dc71b..e66ce08 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -517,70 +517,6 @@
 	}
 }
 
-func apiContributionBp2Build(ctx android.TopDownMutatorContext, module *Module) {
-	apiSurfaces := make([]string, 0)
-	apiHeaders := make([]string, 0)
-	// module-libapi for apexes (non-null `stubs` property)
-	if module.HasStubsVariants() {
-		apiSurfaces = append(apiSurfaces, android.ModuleLibApi.String())
-		apiIncludes := getModuleLibApiIncludes(ctx, module)
-		if !apiIncludes.isEmpty() {
-			createApiHeaderTarget(ctx, apiIncludes)
-			apiHeaders = append(apiHeaders, apiIncludes.name)
-		}
-	}
-	// vendorapi (non-null `llndk` property)
-	if module.HasLlndkStubs() {
-		apiSurfaces = append(apiSurfaces, android.VendorApi.String())
-		apiIncludes := getVendorApiIncludes(ctx, module)
-		if !apiIncludes.isEmpty() {
-			createApiHeaderTarget(ctx, apiIncludes)
-			apiHeaders = append(apiHeaders, apiIncludes.name)
-		}
-	}
-	// create a target only if this module contributes to an api surface
-	// TODO: Currently this does not distinguish modulelibapi-only headers and vendrorapi-only headers
-	// TODO: Update so that modulelibapi-only headers do not get exported to vendorapi (and vice-versa)
-	if len(apiSurfaces) > 0 {
-		props := bazel.BazelTargetModuleProperties{
-			Rule_class:        "cc_api_contribution",
-			Bzl_load_location: "//build/bazel/rules/apis:cc_api_contribution.bzl",
-		}
-		attrs := &bazelCcApiContributionAttributes{
-			Library_name: module.Name(),
-			Api_surfaces: bazel.MakeStringListAttribute(apiSurfaces),
-			Api:          apiLabelAttribute(ctx, module),
-			Hdrs: bazel.MakeLabelListAttribute(
-				bazel.MakeLabelListFromTargetNames(apiHeaders),
-			),
-		}
-		ctx.CreateBazelTargetModule(
-			props,
-			android.CommonAttributes{
-				Name:     android.ApiContributionTargetName(module.Name()),
-				SkipData: proptools.BoolPtr(true),
-			},
-			attrs,
-		)
-	}
-}
-
-// Native apis are versioned in a single .map.txt for all api surfaces
-// Pick any one of the .map.txt files
-func apiLabelAttribute(ctx android.TopDownMutatorContext, module *Module) bazel.LabelAttribute {
-	var apiFile *string
-	linker := module.linker.(*libraryDecorator)
-	if llndkApi := linker.Properties.Llndk.Symbol_file; llndkApi != nil {
-		apiFile = llndkApi
-	} else if moduleLibApi := linker.Properties.Stubs.Symbol_file; moduleLibApi != nil {
-		apiFile = moduleLibApi
-	} else {
-		ctx.ModuleErrorf("API surface library does not have any API file")
-	}
-	apiLabel := android.BazelLabelForModuleSrcSingle(ctx, proptools.String(apiFile)).Label
-	return *bazel.MakeLabelAttribute(apiLabel)
-}
-
 // wrapper struct to flatten the arch and os specific export_include_dirs
 // flattening is necessary since we want to export apis of all arches even when we build for x86 (e.g.)
 type bazelCcApiLibraryHeadersAttributes struct {
diff --git a/cc/library_headers.go b/cc/library_headers.go
index 5eba6ab..fccdf99 100644
--- a/cc/library_headers.go
+++ b/cc/library_headers.go
@@ -15,8 +15,6 @@
 package cc
 
 import (
-	"github.com/google/blueprint/proptools"
-
 	"android/soong/android"
 	"android/soong/bazel"
 	"android/soong/bazel/cquery"
@@ -175,106 +173,6 @@
 	return bazel.MakeLabelList(labels)
 }
 
-func apiLibraryHeadersBp2Build(ctx android.TopDownMutatorContext, module *Module) {
-	// cc_api_library_headers have a 1:1 mapping to arch/no-arch
-	// For API export, create a top-level arch-agnostic target and list the arch-specific targets as its deps
-
-	// arch-agnostic includes
-	apiIncludes := getModuleLibApiIncludes(ctx, module)
-	// arch and os specific includes
-	archApiIncludes, androidOsIncludes := archOsSpecificApiIncludes(ctx, module)
-	for _, arch := range allArches { // sorted iteration
-		archApiInclude := archApiIncludes[arch]
-		if !archApiInclude.isEmpty() {
-			createApiHeaderTarget(ctx, archApiInclude)
-			apiIncludes.addDep(archApiInclude.name)
-		}
-	}
-	// os==android includes
-	if !androidOsIncludes.isEmpty() {
-		createApiHeaderTarget(ctx, androidOsIncludes)
-		apiIncludes.addDep(androidOsIncludes.name)
-	}
-
-	if !apiIncludes.isEmpty() {
-		// override the name from <mod>.module-libapi.headers --> <mod>.contribution
-		apiIncludes.name = android.ApiContributionTargetName(module.Name())
-		createApiHeaderTarget(ctx, apiIncludes)
-	}
-}
-
-func createApiHeaderTarget(ctx android.TopDownMutatorContext, includes apiIncludes) {
-	props := bazel.BazelTargetModuleProperties{
-		Rule_class:        "cc_api_library_headers",
-		Bzl_load_location: "//build/bazel/rules/apis:cc_api_contribution.bzl",
-	}
-	ctx.CreateBazelTargetModule(
-		props,
-		android.CommonAttributes{
-			Name:     includes.name,
-			SkipData: proptools.BoolPtr(true),
-		},
-		&includes.attrs,
-	)
-}
-
 var (
 	allArches = []string{"arm", "arm64", "x86", "x86_64"}
 )
-
-type archApiIncludes map[string]apiIncludes
-
-func archOsSpecificApiIncludes(ctx android.TopDownMutatorContext, module *Module) (archApiIncludes, apiIncludes) {
-	baseProps := bp2BuildParseBaseProps(ctx, module)
-	i := bp2BuildParseExportedIncludes(ctx, module, &baseProps.includes)
-	archRet := archApiIncludes{}
-	for _, arch := range allArches {
-		includes := i.Includes.SelectValue(
-			bazel.ArchConfigurationAxis,
-			arch)
-		systemIncludes := i.SystemIncludes.SelectValue(
-			bazel.ArchConfigurationAxis,
-			arch)
-		deps := baseProps.deps.SelectValue(
-			bazel.ArchConfigurationAxis,
-			arch)
-		attrs := bazelCcLibraryHeadersAttributes{
-			Export_includes:        bazel.MakeStringListAttribute(includes),
-			Export_system_includes: bazel.MakeStringListAttribute(systemIncludes),
-		}
-		apiDeps := apiBazelTargets(deps)
-		if !apiDeps.IsEmpty() {
-			attrs.Deps = bazel.MakeLabelListAttribute(apiDeps)
-		}
-		apiIncludes := apiIncludes{
-			name: android.ApiContributionTargetName(module.Name()) + "." + arch,
-			attrs: bazelCcApiLibraryHeadersAttributes{
-				bazelCcLibraryHeadersAttributes: attrs,
-				Arch:                            proptools.StringPtr(arch),
-			},
-		}
-		archRet[arch] = apiIncludes
-	}
-
-	// apiIncludes for os == Android
-	androidOsDeps := baseProps.deps.SelectValue(bazel.OsConfigurationAxis, bazel.OsAndroid)
-	androidOsAttrs := bazelCcLibraryHeadersAttributes{
-		Export_includes: bazel.MakeStringListAttribute(
-			i.Includes.SelectValue(bazel.OsConfigurationAxis, bazel.OsAndroid),
-		),
-		Export_system_includes: bazel.MakeStringListAttribute(
-			i.SystemIncludes.SelectValue(bazel.OsConfigurationAxis, bazel.OsAndroid),
-		),
-	}
-	androidOsApiDeps := apiBazelTargets(androidOsDeps)
-	if !androidOsApiDeps.IsEmpty() {
-		androidOsAttrs.Deps = bazel.MakeLabelListAttribute(androidOsApiDeps)
-	}
-	osRet := apiIncludes{
-		name: android.ApiContributionTargetName(module.Name()) + ".androidos",
-		attrs: bazelCcApiLibraryHeadersAttributes{
-			bazelCcLibraryHeadersAttributes: androidOsAttrs,
-		},
-	}
-	return archRet, osRet
-}
diff --git a/cc/proto.go b/cc/proto.go
index 0ed4381..4e08a4c 100644
--- a/cc/proto.go
+++ b/cc/proto.go
@@ -246,7 +246,7 @@
 	protoAttrs.Min_sdk_version = m.Properties.Min_sdk_version
 
 	name := m.Name() + suffix
-	tags := android.ApexAvailableTagsWithoutTestApexes(ctx.(android.TopDownMutatorContext), m)
+	tags := android.ApexAvailableTagsWithoutTestApexes(ctx, m)
 	ctx.CreateBazelTargetModule(
 		bazel.BazelTargetModuleProperties{
 			Rule_class:        rule_class,
diff --git a/cc/sysprop.go b/cc/sysprop.go
index 7ddd476..be03004 100644
--- a/cc/sysprop.go
+++ b/cc/sysprop.go
@@ -38,7 +38,7 @@
 }
 
 func Bp2buildSysprop(ctx android.Bp2buildMutatorContext, labels SyspropLibraryLabels, srcs bazel.LabelListAttribute, minSdkVersion *string) {
-	apexAvailableTags := android.ApexAvailableTagsWithoutTestApexes(ctx.(android.TopDownMutatorContext), ctx.Module())
+	apexAvailableTags := android.ApexAvailableTagsWithoutTestApexes(ctx, ctx.Module())
 	ctx.CreateBazelTargetModule(
 		bazel.BazelTargetModuleProperties{
 			Rule_class:        "sysprop_library",
diff --git a/java/droidstubs.go b/java/droidstubs.go
index 1d5dd76..67a55bd 100644
--- a/java/droidstubs.go
+++ b/java/droidstubs.go
@@ -24,7 +24,6 @@
 	"github.com/google/blueprint/proptools"
 
 	"android/soong/android"
-	"android/soong/bazel"
 	"android/soong/java/config"
 	"android/soong/remoteexec"
 )
@@ -855,34 +854,6 @@
 	}
 }
 
-var _ android.ApiProvider = (*Droidstubs)(nil)
-
-type bazelJavaApiContributionAttributes struct {
-	Api         bazel.LabelAttribute
-	Api_surface *string
-}
-
-func (d *Droidstubs) ConvertWithApiBp2build(ctx android.TopDownMutatorContext) {
-	props := bazel.BazelTargetModuleProperties{
-		Rule_class:        "java_api_contribution",
-		Bzl_load_location: "//build/bazel/rules/apis:java_api_contribution.bzl",
-	}
-	apiFile := d.properties.Check_api.Current.Api_file
-	// Do not generate a target if check_api is not set
-	if apiFile == nil {
-		return
-	}
-	attrs := &bazelJavaApiContributionAttributes{
-		Api: *bazel.MakeLabelAttribute(
-			android.BazelLabelForModuleSrcSingle(ctx, proptools.String(apiFile)).Label,
-		),
-		Api_surface: proptools.StringPtr(bazelApiSurfaceName(d.Name())),
-	}
-	ctx.CreateBazelTargetModule(props, android.CommonAttributes{
-		Name: android.ApiContributionTargetName(ctx.ModuleName()),
-	}, attrs)
-}
-
 func (d *Droidstubs) createApiContribution(ctx android.DefaultableHookContext) {
 	api_file := d.properties.Check_api.Current.Api_file
 	api_surface := d.properties.Api_surface