kernel: add a SyncRequest method to KernelObject for use with svcSendSyncRequest

src/core/hle/service/srv.h

@@ -26,12 +26,6 @@ public:
         return "srv:";
     }
 
-    /**
-     * Called when svcSendSyncRequest is called, loads command buffer and executes comand
-     * @return Return result of svcSendSyncRequest passed back to user app
-     */
-    Result Sync();
-
 };
 
 } // namespace