Revert of Adds bot_update to depot_tools.

infra/recipe_modules/gclient/test_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 hashlib
-
-from recipe_engine import recipe_test_api
-
-class GclientTestApi(recipe_test_api.RecipeTestApi):
-  def output_json(self, projects, git_mode=False):
-    """Deterministically synthesize json.output test data for gclient's
-    --output-json option.
-
-    Args:
-      projects - a list of project paths (e.g. ['src', 'src/dependency'])
-      git_mode - Return git hashes instead of svn revs.
-    """
-    # TODO(iannucci): Account for parent_got_revision_mapping. Right now the
-    # synthesized json output from this method will always use
-    # gen_revision(project), but if parent_got_revision and its ilk are
-    # specified, we should use those values instead.
-    return self.m.json.output({
-      'solutions': dict(
-        (p+'/', {'revision': self.gen_revision(p, git_mode)})
-        for p in projects
-      )
-    })
-
-  @staticmethod
-  def gen_revision(project, GIT_MODE):
-    """Hash project to bogus deterministic revision values."""
-    h = hashlib.sha1(project)
-    if GIT_MODE:
-      return h.hexdigest()
-    else:
-      import struct
-      return struct.unpack('!I', h.digest()[:4])[0] % 300000