From 46342a2306d1ea8daac6aaddad895c4be1746cc8 Mon Sep 17 00:00:00 2001
From: qiaolongfei <qiaolongfei@baidu.com>
Date: Thu, 26 Apr 2018 13:51:26 +0800
Subject: [PATCH] delete useless code

---
 paddle/fluid/operators/listen_and_serv_op.cc | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/paddle/fluid/operators/listen_and_serv_op.cc b/paddle/fluid/operators/listen_and_serv_op.cc
index ba2ea0d13..4c0da18ba 100644
--- a/paddle/fluid/operators/listen_and_serv_op.cc
+++ b/paddle/fluid/operators/listen_and_serv_op.cc
@@ -256,10 +256,6 @@ void ListenAndServOp::RunAsyncLoop(framework::Executor *executor,
       }
       AsyncExecuteBlock(executor, grad_to_prepared_block[recv_var_name].get(),
                         v.second->GetMutableLocalScope());
-      // TODO(qiao): explain why
-      if (var->IsType<framework::SelectedRows>()) {
-        var->GetMutable<framework::SelectedRows>()->mutable_rows()->clear();
-      }
     }
 
     if (exit_flag) {
-- 
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