[SSSD] [sssd PR#5784][synchronized] proxy: allow removing group members

[ikerexxe]

   URL: https://github.com/SSSD/sssd/pull/5784
Author: ikerexxe
 Title: #5784: proxy: allow removing group members
Action: synchronized

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/5784/head:pr5784
git checkout pr5784