Revert of depot_tools: add infra_paths recipe module for infra-specific paths

recipe_modules/tryserver/api.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.
 
 import contextlib
 import hashlib
 
 from recipe_engine import recipe_api
 
 
@@ skipping 82 matching lines @@
     patch_content = self.m.raw_io.input(result.raw_io.output)
     self._apply_patch_step(patch_content=patch_content, root=root)
 
   def apply_from_git(self, cwd):
     """Downloads patch from given git repo and ref and applies it"""
     # TODO(nodir): accept these properties as parameters
     patch_repo_url = self.m.properties['patch_repo_url']
     patch_ref = self.m.properties['patch_ref']
 
     patch_dir = self.m.path.mkdtemp('patch')
-    git_setup_py = self.m.infra_paths['build'].join(
-        'scripts', 'slave', 'git_setup.py')
+    git_setup_py = self.m.path['build'].join('scripts', 'slave', 'git_setup.py')
     git_setup_args = ['--path', patch_dir, '--url', patch_repo_url]
     patch_path = patch_dir.join('patch.diff')
 
     self.m.python('patch git setup', git_setup_py, git_setup_args)
     self.m.git('fetch', 'origin', patch_ref,
                 name='patch fetch', cwd=patch_dir)
     self.m.git('clean', '-f', '-d', '-x',
                 name='patch clean', cwd=patch_dir)
     self.m.git('checkout', '-f', 'FETCH_HEAD',
                 name='patch git checkout', cwd=patch_dir)
@@ skipping 124 matching lines @@
       self.add_failure_reason(e.reason)
 
       failure_hash = hashlib.sha1()
       failure_hash.update(self.m.json.dumps(self._failure_reasons))
 
       step_result = self.m.step.active_result
       step_result.presentation.properties['failure_hash'] = \
           failure_hash.hexdigest()
 
       raise