Revert "Restrict access to branch release-R117 to LTS Refresher group."

This reverts commit f9ff1a274aed4d4dc4521deef2dd58bceed18d83.

Reason for revert: merge is done

Change-Id: Ia4008be9bec72ad04a85c34ab36570caab491664
Reviewed-on: https://cos-review.googlesource.com/c/All-Projects/+/212588
Reviewed-by: Miri Amarilio <mirilio@google.com>
Tested-by: He Gao <hegao@google.com>
Reviewed-by: Derek Taylor <ddtaylor@google.com>