[Signin][Android] Remove gogerald@ from sign-in owners

Removes gogerald@chromium.org from chrome/browser/android/signin/OWNERS
and chrome/android/java/src/org/chromium/chrome/browser/signin/OWNERS.

Bug: None
Change-Id: I6994892311d67973f1222f910cfd9407005cddeb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2095099
Auto-Submit: Boris Sazonov <bsazonov@chromium.org>
Reviewed-by: Ganggui Tang <gogerald@chromium.org>
Commit-Queue: Boris Sazonov <bsazonov@chromium.org>
Commit-Queue: Ganggui Tang <gogerald@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751017}

chrome/android/java/src/org/chromium/chrome/browser/signin/OWNERS

 bsazonov@chromium.org
-gogerald@chromium.org
 
 # COMPONENT: Services>Signin

chrome/browser/android/signin/OWNERS

 bsazonov@chromium.org
-gogerald@chromium.org