Revert of Cross-repo recipe package system.

scripts/slave/recipe_modules/v8/builders.py

 # Copyright 2014 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.
 
 # Contains the bulk of the V8 builder configurations so they can be reused
 # from multiple recipes.
 
-from recipe_engine.types import freeze
+from infra.libs.infra_types import freeze
 
 BUILDERS = {
 ####### Waterfall: client.v8
   'client.v8': {
     'builders': {
 ####### Category: Linux
       'V8 Linux - builder': {
         'chromium_apply_config': ['v8_goma'],
         'v8_config_kwargs': {
           'BUILD_CONFIG': 'Release',
@@ skipping 2007 matching lines @@
 dart_linux_release['chromium_apply_config'].extend(['v8_goma'])
 
 dart_mac_release = BUILDERS['client.dart.fyi']['builders']['v8-mac-release']
 dart_mac_release['chromium_apply_config'].extend(['v8_ninja', 'clang', 'goma'])
 
 dart_win_release = BUILDERS['client.dart.fyi']['builders']['v8-win-release']
 dart_win_release['chromium_apply_config'].extend(['v8_ninja', 'msvs2013'])
 
 BUILDERS = freeze(BUILDERS)
 BRANCH_BUILDERS = freeze(BRANCH_BUILDERS)