Revert "Enforce that output files are created in primary ninja execution"

This reverts commit 8d8253f5257e7ab8ffa001d2e491bd0934d9119e.

Reason for revert: Breaks ART gtests e.g. https://android-build.corp.google.com/build_explorer/build_details/12016159/art-gtest/

Change-Id: Ie8e1a28c7d0a21ee6727954127a6ab00ed00e781
diff --git a/ui/build/config.go b/ui/build/config.go
index 3b2f2c5..feded1c 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -98,10 +98,9 @@
 	// Autodetected
 	totalRAM uint64
 
-	brokenDupRules       bool
-	brokenUsesNetwork    bool
-	brokenNinjaEnvVars   []string
-	brokenMissingOutputs bool
+	brokenDupRules     bool
+	brokenUsesNetwork  bool
+	brokenNinjaEnvVars []string
 
 	pathReplaced bool
 
@@ -1592,14 +1591,6 @@
 	return c.brokenNinjaEnvVars
 }
 
-func (c *configImpl) SetBuildBrokenMissingOutputs(val bool) {
-	c.brokenMissingOutputs = val
-}
-
-func (c *configImpl) BuildBrokenMissingOutputs() bool {
-	return c.brokenMissingOutputs
-}
-
 func (c *configImpl) SetTargetDeviceDir(dir string) {
 	c.targetDeviceDir = dir
 }
diff --git a/ui/build/dumpvars.go b/ui/build/dumpvars.go
index e77df44..eba86a0 100644
--- a/ui/build/dumpvars.go
+++ b/ui/build/dumpvars.go
@@ -235,11 +235,6 @@
 		"BUILD_BROKEN_SRC_DIR_IS_WRITABLE",
 		"BUILD_BROKEN_SRC_DIR_RW_ALLOWLIST",
 
-		// Whether missing outputs should be treated as warnings
-		// instead of errors.
-		// `true` will relegate missing outputs to warnings.
-		"BUILD_BROKEN_MISSING_OUTPUTS",
-
 		// Not used, but useful to be in the soong.log
 		"TARGET_BUILD_TYPE",
 		"HOST_ARCH",
@@ -306,5 +301,4 @@
 	config.SetBuildBrokenUsesNetwork(makeVars["BUILD_BROKEN_USES_NETWORK"] == "true")
 	config.SetBuildBrokenNinjaUsesEnvVars(strings.Fields(makeVars["BUILD_BROKEN_NINJA_USES_ENV_VARS"]))
 	config.SetSourceRootDirs(strings.Fields(makeVars["PRODUCT_SOURCE_ROOT_DIRS"]))
-	config.SetBuildBrokenMissingOutputs(makeVars["BUILD_BROKEN_MISSING_OUTPUTS"] == "true")
 }
diff --git a/ui/build/ninja.go b/ui/build/ninja.go
index ae27330..551b8ab 100644
--- a/ui/build/ninja.go
+++ b/ui/build/ninja.go
@@ -77,14 +77,6 @@
 		"-w", "dupbuild=err",
 		"-w", "missingdepfile=err")
 
-	if !config.BuildBrokenMissingOutputs() {
-		// Missing outputs will be treated as errors.
-		// BUILD_BROKEN_MISSING_OUTPUTS can be used to bypass this check.
-		args = append(args,
-			"-w", "missingoutfile=err",
-		)
-	}
-
 	cmd := Command(ctx, config, "ninja", executable, args...)
 
 	// Set up the nsjail sandbox Ninja runs in.