Remove benwell@,raymes@,timloh@ from PERMISSIONS_OWNERS

Change-Id: I88c3e2ddbf86f19cc649fd5b7f442756309ce4aa
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2134176
Commit-Queue: Timothy Loh <timloh@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756558}

components/permissions/PERMISSIONS_OWNERS

-benwells@chromium.org
 dominickn@chromium.org
 engedy@chromium.org
-raymes@chromium.org
-timloh@chromium.org
 hkamila@chromium.org
 andypaicu@chromium.org