def remove_connection(self, connection):
        if not self._closing:
            self.connections.remove(connection)
            logger.debug("removed connection")
Add a series of bars to the chart.
dataset/ETHPy150Open bfrog/whizzer/whizzer/server.py/SocketServer.remove_connection--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/graphy/graphy/bar_chart.py/BarChart.AddBars