Disable google wallet payments for comment gilding.

Comment gilding should be instant, google wallet takes up to an
hour to process.

r2/r2/templates/goldpayment.html

@@ -53,7 +53,8 @@
     %else:
       <p>${_("Please select a payment method.")}</p>
 
-      %if thing.google_id:
+      %if thing.google_id and not thing.clone_template:
+        ## disable google wallet for gilding
         ${self.google_button()}
       %endif