Remove WPTServe FYI bots from mb_config.pyl.

tools/mb/mb_config.pyl

 # 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.
 
 # 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.
 
@@ skipping 188 matching lines @@
       'Mac deterministic (dbg)': 'debug_bot',
       'Mojo ChromiumOS': 'chromeos_with_codecs_ozone_release_trybot',
       'Mojo Windows': 'release_bot_x86',
       'Ozone Linux': 'release_bot_ozone_linux',
       'Site Isolation Android': 'android_release_bot_minimal_symbols_arm64',
       'Site Isolation Linux': 'release_trybot',
       'Site Isolation Win': 'release_trybot_x86',
       'ThinLTO Linux ToT': 'thin_lto_clang_tot_full_symbols_release_static_use_lld',
       'UBSanVptr Linux': 'ubsan_vptr_release_bot',
       'WebKit Linux - TraceWrappables': 'debug_bot',
-      'WebKit Linux - WPTServe': 'release_bot',
-      'WebKit Mac - WPTServe': 'release_bot',
-      'WebKit Win - WPTServe': 'release_bot_x86',
       'WebKit Linux - RandomOrder': 'release_bot',
       'WebKit Mac - RandomOrder': 'release_bot',
       'WebKit Win - RandomOrder': 'release_bot_x86',
       'Win 10 Fast Ring': 'release_trybot',
       'Windows deterministic': 'release_bot_x86',
       'Windows Clang deterministic': 'clang_release_bot_minimal_symbols_x86',
     },
 
     'chromium.goma': {
       'Chromium Linux Goma Staging': 'release_bot',
@@ skipping 1711 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }