Usage: servergroupdelclient sgid={groupID} cldbid={clientDBID}

Permissions:
  i_group_member_remove_power
  i_group_needed_member_remove_power

Description:
  Removes a client specified with cldbid from the server group specified with
  sgid.

Example:
  servergroupdelclient sgid=16 cldbid=3
  error id=0 msg=ok
