Remove dartc optimizing backend.

deps/all.deps/DEPS

 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 vars = {
   "gyp_rev": "@937",
   "co19_rev": "@119",
   "co19_repo": "http://co19.googlecode.com/svn/trunk/co19/",
   "chromium_url": "http://src.chromium.org/svn",
-  "closure_compiler_rev": "@1519",
 }
 
 deps = {
   "dart":
     "/branches/bleeding_edge/dart",
 
   # Stuff needed for GYP to run.
   "dart/third_party/gyp":
     "http://gyp.googlecode.com/svn/trunk" + Var("gyp_rev"),
 
   "dart/third_party/v8":
     "http://v8.googlecode.com/svn/branches/3.4",
 
-  "dart/third_party/closure_compiler_src":
-    "http://closure-compiler.googlecode.com/svn/trunk" + Var("closure_compiler_rev"),
-
   "dart/tests/co19/src":
     Var("co19_repo") + "tests/co19/src" + Var("co19_rev"),
 }
 
 deps_os = {
   "win": {
     "dart/third_party/cygwin":
       Var("chromium_url") + "/trunk/deps/third_party/cygwin@66844",
   },
 }
@@ skipping 29 matching lines @@
     "pattern": ".",
     "action": ["python", "dart/third_party/gyp/gyp", "--depth=dart",
                "-Idart/tools/gyp/all.gypi", "dart/dart.gyp"],
   },
   # Downloads the latest green dartium build
   {
     "pattern": ".",
     "action": ["python", "dart/tools/get_drt.py", "runhooks"],
   },
 ]