Removes a user from a group.
public void profile_removeGroupMember( String accessToken, String groupName, String userName );
The profile_removeGroupMember operation removes a user from membership in a group.
Either the security token passed to your application by Vibe as part of implementing a remote application, or the null value.
A string containing the name of the group from which you want to remove a member.
A string containing the name of the user you want to remove from the specified group.
Java objects in the Vibe sources (see Section 5.6.1, Working with Java Objects)