!1175 del thread of Shrink

From: @yangyongqiang5033
Reviewed-by: @tangqunzhang,@ji_chen,@xchu42
Signed-off-by: @ji_chen

ge/graph/load/model_manager/davinci_model.cc

@@ -765,7 +765,7 @@ Status DavinciModel::Init(void *dev_ptr, size_t mem_size, void *weight_ptr, size
     }
   }
 
-  CREATE_STD_THREAD(shrink_id_, &DavinciModel::Shrink, this);
+  Shrink();
   return SUCCESS;
 }
 
@@ -2722,10 +2722,6 @@ Status DavinciModel::DestroyThread() {
     thread_id_.join();
   }
 
-  if (shrink_id_.joinable()) {
-    shrink_id_.join();
-  }
-
   return SUCCESS;
 }
 

ge/graph/load/model_manager/davinci_model.h

@@ -906,7 +906,6 @@ class DavinciModel {
   vector<int64_t> output_memory_size_list_;
 
   thread thread_id_;
-  thread shrink_id_;
 
   shared_ptr<ModelListener> listener_;