Update buildbot_tool and builders.pyl templates to remove 'master_type'.

scripts/tools/buildbot_tool_templates/waterfall/buildbot.tac

Index: scripts/tools/buildbot_tool_templates/waterfall/buildbot.tac
diff --git a/scripts/tools/buildbot_tool_templates/waterfall/buildbot.tac b/scripts/tools/buildbot_tool_templates/waterfall/buildbot.tac
deleted file mode 100644
index 1a998ac4ff0bd9ebdab6442bcbd6f1f93f60a00d..0000000000000000000000000000000000000000
--- a/scripts/tools/buildbot_tool_templates/waterfall/buildbot.tac
+++ /dev/null
@@ -1,16 +0,0 @@
-# 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.
-
-# This file is used by scripts/tools/buildbot-tool to generate master configs.
-
-import os
-
-from twisted.application import service
-from buildbot.master import BuildMaster
-
-basedir = os.path.dirname(os.path.abspath(__file__))
-configfile = 'master.cfg'
-
-application = service.Application('buildmaster')
-BuildMaster(basedir, configfile).setServiceParent(application)