Do not leak dump objects.

Bug: 163024455

Change-Id: Ia0710c3462f03a85bc22aaac7b190961da1f8be3
Merged-in: I9c1737647d762f478c0e452e5b72f98ec3d43c28

libs/hwui/service/GraphicsStatsService.cpp

@@ -559,6 +559,7 @@ void GraphicsStatsService::finishDumpInMemory(Dump* dump, AStatsEventList* data,
         AStatsEvent_writeBool(event, !lastFullDay);
         AStatsEvent_build(event);
     }
+    delete dump;
 }