Fix --rev option for pure protobuf support

Change-Id: Ib66604c30159a73f96f529eea40fea329627132f
diff --git a/lib/xos-genx/xosgenx/generator.py b/lib/xos-genx/xosgenx/generator.py
index 239a42a..668d351 100755
--- a/lib/xos-genx/xosgenx/generator.py
+++ b/lib/xos-genx/xosgenx/generator.py
@@ -24,9 +24,9 @@
         if hasattr(args, 'rev') and args.rev:
             v = Proto2XProto()
             ast.accept(v)
-        else:
-            v = XOS2Jinja()
-            ast.accept(v)
+
+        v = XOS2Jinja()
+        ast.accept(v)
         return v
 
     @staticmethod
@@ -220,4 +220,4 @@
             elif args.output is not None and args.write_to_file == "single":
                 XOSGenerator._write_single_file(rendered, args.output, args.dest_file, args.quiet)
 
-        return rendered
\ No newline at end of file
+        return rendered