Annotate paths and deprecate ExtractSource(s)Deps

Add `android:"path"` to all properties that take paths to source
files, and remove the calls to ExtractSource(s)Deps, the
pathsDepsMutator will add the necessary SourceDepTag dependency.

Test: All soong tests
Change-Id: I488ba1a5d680aaa50b04fc38acf693e23c6d4d6d
diff --git a/android/filegroup.go b/android/filegroup.go
index b284ce0..76af804 100644
--- a/android/filegroup.go
+++ b/android/filegroup.go
@@ -26,9 +26,9 @@
 
 type fileGroupProperties struct {
 	// srcs lists files that will be included in this filegroup
-	Srcs []string
+	Srcs []string `android:"path"`
 
-	Exclude_srcs []string
+	Exclude_srcs []string `android:"path"`
 
 	// The base path to the files.  May be used by other modules to determine which portion
 	// of the path to use.  For example, when a filegroup is used as data in a cc_test rule,
@@ -59,11 +59,6 @@
 	return module
 }
 
-func (fg *fileGroup) DepsMutator(ctx BottomUpMutatorContext) {
-	ExtractSourcesDeps(ctx, fg.properties.Srcs)
-	ExtractSourcesDeps(ctx, fg.properties.Exclude_srcs)
-}
-
 func (fg *fileGroup) GenerateAndroidBuildActions(ctx ModuleContext) {
 	fg.srcs = ctx.ExpandSourcesSubDir(fg.properties.Srcs, fg.properties.Exclude_srcs, String(fg.properties.Path))
 }