Remove accidental duplication in cctest suite.

test/cctest/compiler/compiler/graph-tester.h

Index: test/cctest/compiler/compiler/graph-tester.h
diff --git a/test/cctest/compiler/compiler/graph-tester.h b/test/cctest/compiler/compiler/graph-tester.h
deleted file mode 100644
index 41dfa07345ae94389c2f3e83a555eff574d3f74b..0000000000000000000000000000000000000000
--- a/test/cctest/compiler/compiler/graph-tester.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2014 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef V8_CCTEST_COMPILER_GRAPH_TESTER_H_
-#define V8_CCTEST_COMPILER_GRAPH_TESTER_H_
-
-#include "src/v8.h"
-#include "test/cctest/cctest.h"
-
-#include "src/compiler/common-operator.h"
-#include "src/compiler/graph.h"
-
-namespace v8 {
-namespace internal {
-namespace compiler {
-
-class GraphTester : public HandleAndZoneScope, public Graph {
- public:
-  GraphTester() : Graph(main_zone()) {}
-};
-
-
-class GraphWithStartNodeTester : public GraphTester {
- public:
-  GraphWithStartNodeTester()
-      : builder_(main_zone()), start_node_(NewNode(builder_.Start())) {
-    SetStart(start_node_);
-  }
-
-  Node* start_node() { return start_node_; }
-
- private:
-  CommonOperatorBuilder builder_;
-  Node* start_node_;
-};
-}
-}
-}  // namespace v8::internal::compiler
-
-#endif  // V8_CCTEST_COMPILER_GRAPH_TESTER_H_