Remove remaining references to test_shell_tests now that the bots have been updated.

webkit/tools/test_shell/run_all_tests.cc

Index: webkit/tools/test_shell/run_all_tests.cc
===================================================================
--- webkit/tools/test_shell/run_all_tests.cc	(revision 197949)
+++ webkit/tools/test_shell/run_all_tests.cc	(working copy)
@@ -1,9 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// TODO(jam): remove this target when all the bots are updated.
-
-int main(int argc, char** argv) {
-  return 0;
-}