Remove bogus master/builder/slave/force parameters from bot_update.

recipe_modules/bot_update/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
-import os
 import struct
-import sys
 from recipe_engine import recipe_test_api
 
 
 class BotUpdateTestApi(recipe_test_api.RecipeTestApi):
-  def output_json(self, master, builder, slave, root, first_sln,
-                  revision_mapping, fail_patch=False,
+  def output_json(self, root, first_sln, revision_mapping, fail_patch=False,
                   output_manifest=False, fixed_revisions=None):
     """Deterministically synthesize json.output test data for gclient's
     --output-json option.
     """
     output = {
         'did_run': True,
         'patch_failure': False
     }
 
     properties = {
@@ skipping 39 matching lines @@
   def gen_revision(project):
     """Hash project to bogus deterministic git hash values."""
     h = hashlib.sha1(project)
     return h.hexdigest()
 
   @staticmethod
   def gen_commit_position(project):
     """Hash project to bogus deterministic Cr-Commit-Position values."""
     h = hashlib.sha1(project)
     return struct.unpack('!I', h.digest()[:4])[0] % 300000