Revert "Restrict access to release branch: release-R113 to LTS Refresher group."

This reverts commit a19eee9371900f6c4d8a6b47378ad4e7d8156086.

Reason for revert: refresh done

Change-Id: I6a9047b81462dbefbe7f123c3de18481509c52a3
Reviewed-on: https://cos-review.googlesource.com/c/All-Projects/+/71391
Tested-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Reviewed-by: Sejal Sharma <sejalsharma@google.com>