loplugin:cstylecast: nop between pointer types of exactly same spelling

Change-Id: I0968c4b37b97bb89ebc8b873c78a96431245f480

pyuno/source/module/pyuno_gc.cxx

@@ -69,7 +69,7 @@ void GCThread::execute()
         return;
     try
     {
-        PyThreadAttach g( (PyInterpreterState*)mPyInterpreter );
+        PyThreadAttach g( mPyInterpreter );
         {
             Runtime runtime;