remove dead Bazel code from soong_ui

Test: CI
Change-Id: Ie9b56c59440ab63d421d19b382cf4f669a5ea215
diff --git a/ui/build/build.go b/ui/build/build.go
index b9bd898..d49a754 100644
--- a/ui/build/build.go
+++ b/ui/build/build.go
@@ -90,7 +90,7 @@
 	}
 }
 
-// These are bitmasks which can be used to check whether various flags are set e.g. whether to use Bazel.
+// These are bitmasks which can be used to check whether various flags are set
 const (
 	_ = iota
 	// Whether to run the kati config step.
@@ -102,9 +102,7 @@
 	// Whether to include the kati-generated ninja file in the combined ninja.
 	RunKatiNinja = 1 << iota
 	// Whether to run ninja on the combined ninja.
-	RunNinja = 1 << iota
-	// Whether to run bazel on the combined ninja.
-	RunBazel      = 1 << iota
+	RunNinja      = 1 << iota
 	RunBuildTests = 1 << iota
 	RunAll        = RunProductConfig | RunSoong | RunKati | RunKatiNinja | RunNinja
 )
@@ -324,11 +322,6 @@
 
 		runNinjaForBuild(ctx, config)
 	}
-
-	// Currently, using Bazel requires Kati and Soong to run first, so check whether to run Bazel last.
-	if what&RunBazel != 0 {
-		runBazel(ctx, config)
-	}
 }
 
 func evaluateWhatToRun(config Config, verboseln func(v ...interface{})) int {