Extract functions from path recipe module so that step can depend on it

scripts/slave/recipes/perf/telemetry_generate_large_profile.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 = [
   'archive',
   'bot_update',
   'chromium',
+  'file',
   'gsutil',
   'path',
   'platform',
   'properties',
   'python',
   'step',
   'zip',
 ]
 
 
@@ skipping 63 matching lines @@
     # Zip the profile.
     zipped_profile_path = zipped_profile_directory.join('large_profile.zip')
     api.zip.directory(
         'Zip Large Profile', profile_directory, zipped_profile_path)
 
     # Upload the result to cloud storage.
     bucket = 'chrome-partner-telemetry'
     cloud_file = _CloudStoragePath(api)
     api.gsutil.upload(str(zipped_profile_path), bucket, cloud_file)
   finally:
-    api.path.rmtree('Remove profile directory.', profile_directory)
-    api.path.rmtree('Remove zipped profile directory.',
+    api.file.rmtree('Remove profile directory.', profile_directory)
+    api.file.rmtree('Remove zipped profile directory.',
                     zipped_profile_directory)
 
 
 def GenTests(api):
   for platform in ('linux', 'win', 'mac'):
     buildername = platform.title() + ' Builder'
     yield (
         api.test(platform) +
         api.properties.generic(
             mastername='master.chromium.perf.fyi',
             buildername=buildername,
             parent_got_revision='5d6dd8eaee742daf7f298f533fb0827dc4a693fd') +
         api.platform.name(platform)
     )