Remove jarSpec structure

It's not doing anything anymore, and the next patch will need more
complex jar arguments.  Just remove it.

Test: m -j checkbuild
Change-Id: I96d15995e86263ec04fd5c13ab0fd54d8b85c788
diff --git a/java/resources.go b/java/resources.go
index 60dc934..4969d48 100644
--- a/java/resources.go
+++ b/java/resources.go
@@ -40,7 +40,8 @@
 	return false
 }
 
-func ResourceDirsToJarSpecs(ctx android.ModuleContext, resourceDirs, excludeDirs []string) []jarSpec {
+func ResourceDirsToJarArgs(ctx android.ModuleContext,
+	resourceDirs, excludeDirs []string) (args []string, deps android.Paths) {
 	var excludes []string
 
 	for _, exclude := range excludeDirs {
@@ -49,8 +50,6 @@
 
 	excludes = append(excludes, resourceExcludes...)
 
-	var jarSpecs []jarSpec
-
 	for _, resourceDir := range resourceDirs {
 		if isStringInSlice(resourceDir, excludeDirs) {
 			continue
@@ -63,9 +62,12 @@
 
 			pattern := filepath.Join(dir.String(), "**/*")
 			bootstrap.GlobFile(ctx, pattern, excludes, fileListFile.String(), depFile)
-			jarSpecs = append(jarSpecs, jarSpec{fileListFile, dir})
+			args = append(args,
+				"-C", dir.String(),
+				"-l", fileListFile.String())
+			deps = append(deps, fileListFile)
 		}
 	}
 
-	return jarSpecs
+	return args, deps
 }