Delete chromium valgrind bots.

scripts/slave/recipe_modules/chromium_tests/trybots.py

 # 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.
 
 from recipe_engine.types import freeze
 
 
 def simple_bot(bot_id, analyze_mode=None):
   return {
     'bot_ids': [bot_id],
@@ skipping 360 matching lines @@
       # Optional GPU bots.
       'linux_optional_gpu_tests_rel': {
         'bot_ids': [
           {
             'mastername': 'chromium.gpu.fyi',
             'buildername': 'GPU Linux Builder',
             'tester': 'Optional Linux Release (NVIDIA)',
           },
         ],
       },
-      'linux_valgrind': {
-        'bot_ids': [
-          {
-            'mastername': 'chromium.memory.fyi',
-            'buildername': 'Chromium Linux Builder (valgrind)',
-            'tester': 'Linux Tests (valgrind)(1)',
-          },
-          {
-            'mastername': 'chromium.memory.fyi',
-            'buildername': 'Chromium Linux Builder (valgrind)',
-            'tester': 'Linux Tests (valgrind)(2)',
-          },
-          {
-            'mastername': 'chromium.memory.fyi',
-            'buildername': 'Chromium Linux Builder (valgrind)',
-            'tester': 'Linux Tests (valgrind)(3)',
-          },
-          {
-            'mastername': 'chromium.memory.fyi',
-            'buildername': 'Chromium Linux Builder (valgrind)',
-            'tester': 'Linux Tests (valgrind)(4)',
-          },
-          {
-            'mastername': 'chromium.memory.fyi',
-            'buildername': 'Chromium Linux Builder (valgrind)',
-            'tester': 'Linux Tests (valgrind)(5)',
-          },
-        ],
-      },
     },
   },
   'tryserver.chromium.mac': {
     'builders': {
       'mac_chromium_archive_rel_ng': simple_bot({
         'mastername': 'chromium',
         'buildername': 'Mac',
       }),
       'mac_chromium_dbg_ng': simple_bot({
         'mastername': 'chromium.mac',
@@ skipping 188 matching lines @@
         'mastername': 'client.v8.fyi',
         'buildername': 'V8 Linux GN',
       }),
       'v8_android_chromium_gn_dbg': simple_bot({
         'mastername': 'client.v8.fyi',
         'buildername': 'V8 Android GN (dbg)',
       }),
     },
   },
 })