!1423 Remove unused variable

From: @xchu42
Reviewed-by: @ji_chen,@wqtshg
Signed-off-by: @ji_chen

ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc

@@ -119,7 +119,7 @@ Status KnownNodeTask::Init(TaskContext &context) {
 }
 
 Status KnownNodeTask::InitDavinciModel(const HybridModel &model) {
-  GELOGD("[Init][Model] start");
+  GELOGD("[Init][DavinciModel] start");
   davinci_model_->InitRuntimeParams();
   GE_CHK_STATUS_RET(davinci_model_->InitVariableMem(), "init variable mem failed");
   int32_t device_id = 0;

ge/hybrid/node_executor/compiledsubgraph/known_node_executor.h

@@ -42,7 +42,6 @@ class KnownNodeTask : public NodeTask {
   virtual Status DoInitDavinciModel();
  private:
   std::shared_ptr<DavinciModel> davinci_model_ = nullptr;
-  bool load_flag_ = false;
 };
 
 class KnownNodeExecutor : public NodeExecutor {