Remove/rename obsolete precise64 official builders.

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 409 matching lines @@
       'Linux Canary': 'debug_bot',
       'Linux Dev': 'debug_bot',
       'Mac Dev': 'debug_bot',
       'Windows Dev': 'debug_bot',
     },
 
     'official.desktop': {
       'linux64': 'official',
       'mac64': 'official',
       'mac64-recipes': 'official',
-      'precise64': 'official_six_concurrent_links',
 
       # Currently the official bots set mini_installer_official_deps=1
       # but it's not clear if that's actually used anywhere.
       'win': 'official_x86',
       'win-asan': 'official_syzyasan_x86',
       'win-clang': 'official_clang_x86',
       'win-pgo': {
         '1': 'official_chrome_pgo_phase_1_x86',
         '2': 'official_chrome_pgo_phase_2_x86',
       },
       'win64': 'official',
       'win64-clang': 'official_clang',
       'win64-pgo': {
         '1': 'official_chrome_pgo_phase_1',
         '2': 'official_chrome_pgo_phase_2',
       },
-      # TODO(mmoss): Remove this once official recipes are working and this
-      # just becomes the regular "win64-pgo" builder.
-      'win64-pgo-recipes': {
-        '1': 'official_chrome_pgo_phase_1',
-        '2': 'official_chrome_pgo_phase_2',
-      },
+      # TODO(mmoss): Remove this once all official Windows recipes are working.
+      'win-recipes': 'official',
     },
 
     'official.desktop.continuous': {
       'mac beta': 'official',
       'mac stable': 'official',
       'mac trunk': 'official',
+      'linux64 beta': 'official_six_concurrent_links',
+      'linux64 stable': 'official_six_concurrent_links',
+      'linux64 trunk': 'official_six_concurrent_links',
+      # TODO(mmoss): These precise64 entries can go away once the newly renamed
+      # builders are fully deployed.
       'precise64 beta': 'official_six_concurrent_links',
       'precise64 stable': 'official_six_concurrent_links',
       'precise64 trunk': 'official_six_concurrent_links',
       'win beta': 'official_six_concurrent_links',
       'win stable': 'official_six_concurrent_links',
       'win trunk': 'official_six_concurrent_links',
       'win64 trunk': 'official_six_concurrent_links',
     },
 
     'tryserver.blink': {
@@ skipping 1460 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }