Revert "build: roll infra_paths changes"

scripts/slave/recipes/catapult.py

 # Copyright 2015 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.
 
 DEPS = [
   'chromium',
   'depot_tools/bot_update',
   'depot_tools/gclient',
-  'depot_tools/infra_paths',
   'gitiles',
   'recipe_engine/generator_script',
   'recipe_engine/path',
   'recipe_engine/platform',
   'recipe_engine/properties',
   'recipe_engine/python',
 ]
 
 
 def _CheckoutSteps(api):
@@ skipping 10 matching lines @@
   which is then used to download and unpack the SDK itself.
   """
   script_content = api.gitiles.download_file(
       'https://chromium.googlesource.com/infra/infra',
       'bootstrap/get_appengine.py',
       step_name='Fetch SDK downloader',
       # This is a commit after the latest fix to the script,
       # which includes retrying requests.
       branch='fd119c547fd4e56eeab77d138b0426022ae1d159')
   api.python.inline('Run SDK downloader', script_content, args=['--dest=.'])
-  return api.infra_paths['slave_build'].join('google_appengine')
+  return api.path['slave_build'].join('google_appengine')
 
 
 def _RemoteSteps(api, app_engine_sdk_path):
   """Runs the build steps specified in catapult_build/build_steps.py.
 
   Steps are specified in catapult repo in order to avoid multi-sided patches
   when updating tests and adding/moving directories.
 
   This step uses the generator_script; see documentation at
   github.com/luci/recipes-py/blob/master/recipe_modules/generator_script/api.py
@@ skipping 30 matching lines @@
                    buildername='windows',
                    slavename='windows_slave') +
     api.step_data('Fetch SDK downloader',
                   api.gitiles.make_encoded_file(
                       '"<simulated contents of get_appengine.py>"')) +
     api.generator_script(
       'build_steps.py',
       {'name': 'Dashboard Tests', 'cmd': ['run_py_tests', '--no-hooks']},
     )
   )