def remove_from_roster
      item_fields = {:jid => jid.bare, :subscription => 'remove'}

      query = connection.iq_stanza({:type => 'set'},
				x('query',{:xmlns => Roster},
					x('item',item_fields)
				)
			)

      send_iq_stanza_fibered query
    end
def remove_from_roster
      item_fields = {:jid => jid.bare, :subscription => 'remove'}

      query = connection.iq_stanza({:type => 'set'},
				x('query',{:xmlns => Roster},
					x('item',item_fields)
				)
			)

      send_iq_stanza_fibered query
    end
removes an entity (bare) from the roster