Cleanup more bazel code

Bug: 315353489
Test: m nothing --no-skip-soong-tests
Change-Id: I6c6b4fcd559f4a45b1a96c70cbb5d6d1a615ccff

ui/build/soong.go

@@ -27,7 +27,6 @@ import (
 
 	"android/soong/ui/tracer"
 
-	"android/soong/bazel"
 	"android/soong/ui/metrics"
 	"android/soong/ui/metrics/metrics_proto"
 	"android/soong/ui/status"
@@ -603,10 +602,6 @@ func runSoong(ctx Context, config Config) {
 
 		checkEnvironmentFile(ctx, soongBuildEnv, config.UsedEnvFile(soongBuildTag))
 
-		// Remove bazel files in the event that bazel is disabled for the build.
-		// These files may have been left over from a previous bazel-enabled build.
-		cleanBazelFiles(config)
-
 		if config.JsonModuleGraph() {
 			checkEnvironmentFile(ctx, soongBuildEnv, config.UsedEnvFile(jsonModuleGraphTag))
 		}
@@ -758,18 +753,6 @@ func loadSoongBuildMetrics(ctx Context, config Config, oldTimestamp time.Time) {
 	}
 }
 
-func cleanBazelFiles(config Config) {
-	files := []string{
-		shared.JoinPath(config.SoongOutDir(), "bp2build"),
-		shared.JoinPath(config.SoongOutDir(), "workspace"),
-		shared.JoinPath(config.SoongOutDir(), bazel.SoongInjectionDirName),
-		shared.JoinPath(config.OutDir(), "bazel")}
-
-	for _, f := range files {
-		os.RemoveAll(f)
-	}
-}
-
 func runMicrofactory(ctx Context, config Config, name string, pkg string, mapping map[string]string) {
 	ctx.BeginTrace(metrics.RunSoong, name)
 	defer ctx.EndTrace()