Remove accidental duplication in cctest suite.

test/cctest/compiler/compiler/test-instruction-selector.cc

Index: test/cctest/compiler/compiler/test-instruction-selector.cc
diff --git a/test/cctest/compiler/compiler/test-instruction-selector.cc b/test/cctest/compiler/compiler/test-instruction-selector.cc
deleted file mode 100644
index a82ceb2be31393c30db86905c38cf81d41cd355d..0000000000000000000000000000000000000000
--- a/test/cctest/compiler/compiler/test-instruction-selector.cc
+++ /dev/null
@@ -1,18 +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.
-
-#include "test/cctest/compiler/instruction-selector-tester.h"
-
-using namespace v8::internal;
-using namespace v8::internal::compiler;
-
-TEST(InstructionSelectionReturnZero) {
-  InstructionSelectorTester m(InstructionSelectorTester::kInternalMode);
-  m.Return(m.Int32Constant(0));
-  m.SelectInstructions();
-  CHECK_EQ(2, m.code.size());
-  CHECK_EQ(kArchNop, m.code[0]->opcode());
-  CHECK_EQ(kArchRet, m.code[1]->opcode());
-  CHECK_EQ(1, m.code[1]->InputCount());
-}