Group User Delete
Removes a user from a group.
Signature: def groupuserdelete(cinfo)
Parameters:
cinfo['acctid'] - The user to be removed
cinfo['groupid'] - The group the user should be removed from
Return Value:
ACSuccess 0
ACUnknownError 1
ACOperationNotSupported 2
ACInvalidUser 7
ACUserNotInGroup 9
ACInvalidObject 38
ACNotRelated 40