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/builder.go b/java/builder.go
index b8332ad..95345d4 100644
--- a/java/builder.go
+++ b/java/builder.go
@@ -129,14 +129,6 @@
 	javaVersion   string
 }
 
-type jarSpec struct {
-	fileList, dir android.Path
-}
-
-func (j jarSpec) soongJarArgs() string {
-	return "-C " + j.dir.String() + " -l " + j.fileList.String()
-}
-
 func TransformJavaToClasses(ctx android.ModuleContext, srcFiles, srcFileLists android.Paths,
 	flags javaBuilderFlags, deps android.Paths) android.ModuleOutPath {
 
@@ -206,18 +198,11 @@
 	return classFileList
 }
 
-func TransformResourcesToJar(ctx android.ModuleContext, resources []jarSpec,
+func TransformResourcesToJar(ctx android.ModuleContext, jarArgs []string,
 	deps android.Paths) android.Path {
 
 	outputFile := android.PathForModuleOut(ctx, "res.jar")
 
-	jarArgs := []string{}
-
-	for _, j := range resources {
-		deps = append(deps, j.fileList)
-		jarArgs = append(jarArgs, j.soongJarArgs())
-	}
-
 	ctx.ModuleBuild(pctx, android.ModuleBuildParams{
 		Rule:        jar,
 		Description: "jar",