Remove 'profiler' category from WATCHLISTS

R=bmeurer@chromium.org

Change-Id: Ia76369623c767fbbc249d1d77643d63062f99487
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1870231Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64405}

WATCHLISTS

@@ -137,9 +137,6 @@
       'adamk+watch@chromium.org',
       'marja+watch@chromium.org',
     ],
-    'profiler': [
-      'alph+watch@chromium.org',
-    ],
     'tracing': [
       'alph+watch@chromium.org',
       'lpy+v8tracing@chromium.org',