修复 流已经关闭后，再次调用关闭流的接口，返回超时

panlinlin

2021-04-16 c5f2aba9b20089f184ce175b58a33a881ea9e0b1

 src/main/java/com/genersoft/iot/vmp/gb28181/session/VideoStreamSessionManager.java

@@ -44,5 +44,6 @@
      sessionMap.remove(deviceId + "_" + channelId);

      SsrcUtil.releaseSsrc(ssrcMap.get(deviceId + "_" + channelId));

      ssrcMap.remove(deviceId + "_" + channelId);

      streamIdMap.remove(deviceId + "_" + channelId);

   }

}