Debugger[CDB]: selectThread(): Remove call to resetLocation().

It is unneeded and causes the thread window to become disabled.

Change-Id: I9a3621bc574cf6774b401de7eb925741db3b9f35
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/cdb/cdbengine.cpp

@@ -1545,7 +1545,6 @@ void CdbEngine::selectThread(int index)
     if (index < 0 || index == threadsHandler()->currentThread())
         return;
 
-    resetLocation();
     const int newThreadId = threadsHandler()->threads().at(index).id;
     threadsHandler()->setCurrentThread(index);