Remove the patch for the mysql_install_db script
    The patched piece of code was actually never executed, because of the following condition:
      "$in_rpm" -eq 0
    However we call the script with the "--rpm" option from the Systemd service file:
      https://src.fedoraproject.org/rpms/mariadb/blob/rawhide/f/mysql-prepare-db-dir.sh#_100