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/java.go b/java/java.go
index 82dabfa..a0bcbfe 100644
--- a/java/java.go
+++ b/java/java.go
@@ -426,10 +426,11 @@
 		jars = append(jars, classes)
 	}
 
-	resourceJarSpecs := ResourceDirsToJarSpecs(ctx, j.properties.Java_resource_dirs, j.properties.Exclude_java_resource_dirs)
-	if len(resourceJarSpecs) > 0 {
+	resArgs, resDeps := ResourceDirsToJarArgs(ctx, j.properties.Java_resource_dirs, j.properties.Exclude_java_resource_dirs)
+
+	if len(resArgs) > 0 {
 		// Combine classes + resources into classes-full-debug.jar
-		resourceJar := TransformResourcesToJar(ctx, resourceJarSpecs, extraJarDeps)
+		resourceJar := TransformResourcesToJar(ctx, resArgs, resDeps)
 		if ctx.Failed() {
 			return
 		}