fixed issue of repeated profile subscription

ge/graph/load/new_model_manager/davinci_model.cc

@@ -734,7 +734,6 @@ Status DavinciModel::ReportProfilingData() {
   }
   ProfilingManager::Instance().ReportProfilingData(model_id_, GetTaskDescInfo(), compute_graph_desc_info);
   GE_CHK_STATUS(SinkModelProfile(), "Sink model profiler failed.");
-  op_list_.clear();
 
   return SUCCESS;
 }