DevTools watch lists: switch to the group-based subscription.

Change-Id: Iba19664d4e350826ce89b89788bc2e68a5ed1c84
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1815885Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Commit-Queue: Pavel Feldman <pfeldman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698522}

WATCHLISTS

@@ -2058,11 +2058,7 @@
                                  'mlamouri+watch-blink@chromium.org',
                                  'rijubrata.bhaumik@intel.com',
                                  'timvolodine@chromium.org'],
-    'blink_devtools': ['apavlov+blink@chromium.org',
-                       'caseq+blink@chromium.org',
-                       'devtools-reviews+blink@chromium.org',
-                       'lushnikov+blink@chromium.org',
-                       'pfeldman+blink@chromium.org'],
+    'blink_devtools': ['devtools-reviews+blink@chromium.org'],
     'blink_dom': ['blink-reviews-dom@chromium.org',
                   'eae+blinkwatch@chromium.org'],
     'blink_dom_events': ['hayato+watch@chromium.org'],
@@ -2308,8 +2304,7 @@
     'device_chooser': ['juncai+watch@chromium.org',
                        'mattreynolds+watch@chromium.org',
                        'odejesush+watch@chromium.org'],
-    'devtools': ['devtools-reviews@chromium.org',
-                 'pfeldman@chromium.org'],
+    'devtools': ['devtools-reviews@chromium.org'],
     'disk_cache': ['gavinp+disk@chromium.org'],
     'download': ['dtrainor+watch@chromium.org'],
     'downloads_ui': ['dbeam+watch-downloads-ui@chromium.org',