Remove old unused CELab config.pyl.

Moved in https://crrev.com/c/1841581 and https://crrev.com/c/1841889.

Bug: 1011508
Change-Id: I9a582bf09f3c3198e1438e8d41774cee1f5ffabc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1842560Reviewed-by: Owen Min <zmin@chromium.org>
Commit-Queue: Mathieu Binette <mbinette@google.com>
Cr-Commit-Position: refs/heads/master@{#703386}

chrome/browser/policy/e2e_test/infra/config.pyl

-# Copyright 2019 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 is a .pyl, or "Python Literal", file. You can treat it just like a
-# .json file, with the following exceptions:
-# * all keys must be quoted (use single quotes, please);
-# * comments are allowed, using '#' syntax; and
-# * trailing commas are allowed.
-
-{
-  # This is a map of buildbot master names -> buildbot builder names ->
-  # config names (where each config name is a key in the 'configs' dict,
-  # below). MB uses this dict to look up which config to use for a given bot.
-  'masters': {
-    'chromium.win': {
-      'win-celab-builder-rel': 'win-celab',
-    },
-
-    'tryserver.chromium.win': {
-      'win-celab-try-rel': 'win-celab',
-    },
-  },
-
-  # This is the list of configs that you can pass to mb; each config
-  # represents a particular combination of gn args that we must support.
-  'configs': {
-    'win-celab': [
-      'release_bot', 'minimal_symbols'
-    ],
-  },
-
-  # This is a dict mapping a given 'mixin' name to a dict of settings that
-  # mb should use. See //tools/mb/docs/user_guide.md for more information.
-  'mixins':
-  {
-    'goma': {
-      'gn_args': 'use_goma=true strip_absolute_paths_from_debug_symbols=true',
-    },
-
-    'minimal_symbols': {
-      'gn_args': 'symbol_level=1',
-    },
-
-    'release': {
-      'gn_args': 'is_debug=false',
-    },
-
-    'release_bot': {
-      'mixins': ['release', 'static', 'goma'],
-    },
-
-    'static': {
-      'gn_args': 'is_component_build=false',
-    },
-  },
-}