Remove lxj@google.com from chrome/browser/extensions/api/shared_storage/OWNERS

This suggested change is automatically generated based on group
memberships and affiliations.
If this change is unnecessary or in error, vote CR -1 and the bot
will abandon it. Vote CR +1/2 to approve this change.

See the owner's recent activity for context:
https://chromium-review.googlesource.com/q/lxj@google.com

To report an issue, file a bug in the Infra>Codereview component.

Change-Id: Ic2b7da998e3f9028e4875dbf5dbaa7d6e096e762
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5292696
Commit-Queue: Erik Chen <erikchen@chromium.org>
Auto-Submit: Owners Cleanup <swarming-tasks@owners-cleanup-prod.google.com.iam.gserviceaccount.com>
Reviewed-by: Erik Chen <erikchen@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1327295}