diff --git a/apex/apex_singleton.go b/apex/apex_singleton.go
index d46104e..7b3acb5 100644
--- a/apex/apex_singleton.go
+++ b/apex/apex_singleton.go
@@ -18,7 +18,6 @@
 
 import (
 	"encoding/json"
-	"strings"
 
 	"github.com/google/blueprint"
 
@@ -59,9 +58,9 @@
 
 	// Diff two given lists while ignoring comments in the allowed deps file.
 	diffAllowedApexDepsInfoRule = pctx.AndroidStaticRule("diffAllowedApexDepsInfoRule", blueprint.RuleParams{
-		Description: "Diff ${allowed_deps_list} and ${new_allowed_deps}",
+		Description: "Diff ${allowed_deps} and ${new_allowed_deps}",
 		Command: `
-			if grep -v -h '^#' ${allowed_deps_list} | sort -u -f| diff -B -u - ${new_allowed_deps}; then
+			if grep -v '^#' ${allowed_deps} | diff -B - ${new_allowed_deps}; then
 			   touch ${out};
 			else
 				echo;
@@ -85,15 +84,10 @@
 				exit 1;
 			fi;
 		`,
-	}, "allowed_deps_list", "new_allowed_deps")
+	}, "allowed_deps", "new_allowed_deps")
 )
 
 func (s *apexDepsInfoSingleton) GenerateBuildActions(ctx android.SingletonContext) {
-	allowedDepsSources := []android.OptionalPath{android.ExistentPathForSource(ctx, "packages/modules/common/build/allowed_deps.txt")}
-	extraAllowedDepsPath := ctx.Config().ExtraAllowedDepsTxt()
-	if extraAllowedDepsPath != "" {
-		allowedDepsSources = append(allowedDepsSources, android.ExistentPathForSource(ctx, extraAllowedDepsPath))
-	}
 	updatableFlatLists := android.Paths{}
 	ctx.VisitAllModules(func(module android.Module) {
 		if binaryInfo, ok := module.(android.ApexBundleDepsInfoIntf); ok {
@@ -105,42 +99,37 @@
 			}
 		}
 	})
+
+	allowedDepsSource := android.ExistentPathForSource(ctx, "packages/modules/common/build/allowed_deps.txt")
 	newAllowedDeps := android.PathForOutput(ctx, "apex", "depsinfo", "new-allowed-deps.txt")
 	s.allowedApexDepsInfoCheckResult = android.PathForOutput(ctx, newAllowedDeps.Rel()+".check")
-	hasOneValidDepsPath := false
-	for _, allowedDepsSource := range allowedDepsSources {
-		if allowedDepsSource.Valid() {
-			hasOneValidDepsPath = true
-			updatableFlatLists = append(updatableFlatLists, allowedDepsSource.Path())
-		}
-	}
-	allowedDepsStrList := make([]string, len(allowedDepsSources))
-	for _, value := range allowedDepsSources {
-		allowedDepsStrList = append(allowedDepsStrList, value.String())
-	}
-	allowedDepsListString := strings.Join(allowedDepsStrList, " ")
-	if !hasOneValidDepsPath {
+
+	if !allowedDepsSource.Valid() {
 		// Unbundled projects may not have packages/modules/common/ checked out; ignore those.
 		ctx.Build(pctx, android.BuildParams{
 			Rule:   android.Touch,
 			Output: s.allowedApexDepsInfoCheckResult,
 		})
 	} else {
+		allowedDeps := allowedDepsSource.Path()
+
 		ctx.Build(pctx, android.BuildParams{
 			Rule:   generateApexDepsInfoFilesRule,
-			Inputs: updatableFlatLists,
+			Inputs: append(updatableFlatLists, allowedDeps),
 			Output: newAllowedDeps,
 		})
+
 		ctx.Build(pctx, android.BuildParams{
 			Rule:   diffAllowedApexDepsInfoRule,
 			Input:  newAllowedDeps,
 			Output: s.allowedApexDepsInfoCheckResult,
 			Args: map[string]string{
-				"allowed_deps_list": allowedDepsListString,
-				"new_allowed_deps":  newAllowedDeps.String(),
+				"allowed_deps":     allowedDeps.String(),
+				"new_allowed_deps": newAllowedDeps.String(),
 			},
 		})
 	}
+
 	ctx.Phony("apex-allowed-deps-check", s.allowedApexDepsInfoCheckResult)
 }
 
diff --git a/apex/apex_test.go b/apex/apex_test.go
index e1a9582..0472488 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -2197,153 +2197,6 @@
 		flatlist, "yourlib(minSdkVersion:29)")
 }
 
-func TestTrackCustomAllowedDepsInvalidDefaultTxt(t *testing.T) {
-	t.Parallel()
-	ctx := testApex(t, `
-		apex {
-			name: "myapex",
-			key: "myapex.key",
-			updatable: true,
-			native_shared_libs: [
-				"mylib",
-				"yourlib",
-			],
-			min_sdk_version: "29",
-		}
-
-		apex {
-			name: "myapex2",
-			key: "myapex.key",
-			updatable: false,
-			native_shared_libs: ["yourlib"],
-		}
-
-		apex_key {
-			name: "myapex.key",
-			public_key: "testkey.avbpubkey",
-			private_key: "testkey.pem",
-		}
-
-		cc_library {
-			name: "mylib",
-			srcs: ["mylib.cpp"],
-			shared_libs: ["libbar"],
-			min_sdk_version: "29",
-			apex_available: ["myapex"],
-		}
-
-		cc_library {
-			name: "libbar",
-			stubs: { versions: ["29", "30"] },
-		}
-
-		cc_library {
-			name: "yourlib",
-			srcs: ["mylib.cpp"],
-			min_sdk_version: "29",
-			apex_available: ["myapex", "myapex2", "//apex_available:platform"],
-		}
-	`, withFiles(android.MockFS{
-		"packages/modules/common/build/custom_allowed_deps.txt": nil,
-	}),
-		android.FixtureModifyProductVariables(
-			func(variables android.FixtureProductVariables) {
-				variables.ExtraAllowedDepsTxt = proptools.StringPtr("packages/modules/common/build/custom_allowed_deps.txt")
-			},
-		))
-
-	depsinfo := ctx.SingletonForTests("apex_depsinfo_singleton")
-	inputs := depsinfo.Rule("generateApexDepsInfoFilesRule").BuildParams.Inputs.Strings()
-	android.AssertStringListContains(t, "updatable myapex should generate depsinfo file", inputs,
-		"out/soong/.intermediates/myapex/android_common_myapex/depsinfo/flatlist.txt")
-	android.AssertStringListDoesNotContain(t, "non-updatable myapex2 should not generate depsinfo file", inputs,
-		"out/soong/.intermediates/myapex2/android_common_myapex2/depsinfo/flatlist.txt")
-
-	myapex := ctx.ModuleForTests("myapex", "android_common_myapex")
-	flatlist := strings.Split(android.ContentFromFileRuleForTests(t, ctx,
-		myapex.Output("depsinfo/flatlist.txt")), "\n")
-	android.AssertStringListContains(t, "deps with stubs should be tracked in depsinfo as external dep",
-		flatlist, "libbar(minSdkVersion:(no version)) (external)")
-	android.AssertStringListDoesNotContain(t, "do not track if not available for platform",
-		flatlist, "mylib:(minSdkVersion:29)")
-	android.AssertStringListContains(t, "track platform-available lib",
-		flatlist, "yourlib(minSdkVersion:29)")
-}
-
-func TestTrackCustomAllowedDepsWithDefaultTxt(t *testing.T) {
-	t.Parallel()
-	ctx := testApex(t, `
-		apex {
-			name: "myapex",
-			key: "myapex.key",
-			updatable: true,
-			native_shared_libs: [
-				"mylib",
-				"yourlib",
-			],
-			min_sdk_version: "29",
-		}
-
-		apex {
-			name: "myapex2",
-			key: "myapex.key",
-			updatable: false,
-			native_shared_libs: ["yourlib"],
-		}
-
-		apex_key {
-			name: "myapex.key",
-			public_key: "testkey.avbpubkey",
-			private_key: "testkey.pem",
-		}
-
-		cc_library {
-			name: "mylib",
-			srcs: ["mylib.cpp"],
-			shared_libs: ["libbar"],
-			min_sdk_version: "29",
-			apex_available: ["myapex"],
-		}
-
-		cc_library {
-			name: "libbar",
-			stubs: { versions: ["29", "30"] },
-		}
-
-		cc_library {
-			name: "yourlib",
-			srcs: ["mylib.cpp"],
-			min_sdk_version: "29",
-			apex_available: ["myapex", "myapex2", "//apex_available:platform"],
-		}
-	`, withFiles(android.MockFS{
-		"packages/modules/common/build/custom_allowed_deps.txt": nil,
-		"packages/modules/common/build/allowed_deps.txt":        nil,
-	}),
-		android.FixtureModifyProductVariables(
-			func(variables android.FixtureProductVariables) {
-				variables.ExtraAllowedDepsTxt = proptools.StringPtr("packages/modules/common/build/custom_allowed_deps.txt")
-			},
-		))
-
-	depsinfo := ctx.SingletonForTests("apex_depsinfo_singleton")
-	inputs := depsinfo.Rule("generateApexDepsInfoFilesRule").BuildParams.Inputs.Strings()
-	android.AssertStringListContains(t, "updatable myapex should generate depsinfo file", inputs,
-		"out/soong/.intermediates/myapex/android_common_myapex/depsinfo/flatlist.txt")
-	android.AssertStringListDoesNotContain(t, "non-updatable myapex2 should not generate depsinfo file", inputs,
-		"out/soong/.intermediates/myapex2/android_common_myapex2/depsinfo/flatlist.txt")
-
-	myapex := ctx.ModuleForTests("myapex", "android_common_myapex")
-	flatlist := strings.Split(android.ContentFromFileRuleForTests(t, ctx,
-		myapex.Output("depsinfo/flatlist.txt")), "\n")
-	android.AssertStringListContains(t, "deps with stubs should be tracked in depsinfo as external dep",
-		flatlist, "libbar(minSdkVersion:(no version)) (external)")
-	android.AssertStringListDoesNotContain(t, "do not track if not available for platform",
-		flatlist, "mylib:(minSdkVersion:29)")
-	android.AssertStringListContains(t, "track platform-available lib",
-		flatlist, "yourlib(minSdkVersion:29)")
-}
-
 func TestTrackAllowedDeps_SkipWithoutAllowedDepsTxt(t *testing.T) {
 	t.Parallel()
 	ctx := testApex(t, `