Automated rollback of change 151331705

Change: 151335029

1 files changed, 0 insertions, 18 deletions

diff --git a/tensorflow/core/grappler/optimizers/graph_rewriter.cc b/tensorflow/core/grappler/optimizers/graph_rewriter.cc
index fbb7e849ba..b554baea95 100644
--- a/tensorflow/core/grappler/optimizers/graph_rewriter.cc
+++ b/tensorflow/core/grappler/optimizers/graph_rewriter.cc
@@ -27,19 +27,6 @@ GraphRewriter::GraphRewriter(const GrapplerItem& item) {
   for (auto& node : item.graph.node()) {
     nodes_[node.name()] = &node;
   }
-
-  for (auto& node : item.graph.node()) {
-    for (const auto& input : node.input()) {
-      int position = 0;
-      string input_node_name = ParseNodeName(input, &position);
-      if (position < 0) {
-        // This is a control edge
-        auto itr = nodes_.find(input_node_name);
-        CHECK(itr != nodes_.end());
-        control_dependency_drivers_.insert(itr->second);
-      }
-    }
-  }
 }
 
 void GraphRewriter::ForwardInputs(
@@ -59,10 +46,5 @@ void GraphRewriter::ForwardInputs(
   }
 }
 
-bool GraphRewriter::DrivesControlDependency(const NodeDef& node) const {
-  return control_dependency_drivers_.find(&node) !=
-         control_dependency_drivers_.end();
-}
-
 }  // end namespace grappler
 }  // end namespace tensorflow