Revert "Use TypeNamespace instances in aidl.cpp"

This fixes a build break while we investigate.

This reverts commit d03b54f61d1a0fb1a2791ee96d476180a5d38c85.

Change-Id: I200e7a6c84274e71ea661f8d952807e8266c5e54
diff --git a/generate_java.cpp b/generate_java.cpp
index 116b5c4..09a4410 100644
--- a/generate_java.cpp
+++ b/generate_java.cpp
@@ -64,12 +64,12 @@
 // =================================================
 int
 generate_java(const string& filename, const string& originalSrc,
-                interface_type* iface, JavaTypeNamespace* types)
+                interface_type* iface)
 {
     Class* cl;
 
     if (iface->document_item.item_type == INTERFACE_TYPE_BINDER) {
-        cl = generate_binder_interface_class(iface, types);
+        cl = generate_binder_interface_class(iface);
     }
 
     Document* document = new Document;