去除多余引用，修正个别错误

src/main/java/com/genersoft/iot/vmp/service/IMediaService.java

@@ -1,8 +1,6 @@
 package com.genersoft.iot.vmp.service;
 
 import com.genersoft.iot.vmp.common.StreamInfo;
-import com.genersoft.iot.vmp.gb28181.bean.GbStream;
-import com.genersoft.iot.vmp.gb28181.bean.PlatformGbStream;
 
 /**
  * 媒体信息业务

src/main/java/com/genersoft/iot/vmp/service/IStreamPushService.java

@@ -1,8 +1,6 @@
 package com.genersoft.iot.vmp.service;
 
-import com.alibaba.fastjson.JSONObject;
 import com.genersoft.iot.vmp.gb28181.bean.GbStream;
-import com.genersoft.iot.vmp.media.zlm.dto.StreamProxyItem;
 import com.genersoft.iot.vmp.media.zlm.dto.StreamPushItem;
 import com.github.pagehelper.PageInfo;
 

src/main/java/com/genersoft/iot/vmp/service/impl/MediaServiceImpl.java

@@ -3,12 +3,10 @@ package com.genersoft.iot.vmp.service.impl;
 import com.alibaba.fastjson.JSONObject;
 import com.genersoft.iot.vmp.common.StreamInfo;
 import com.genersoft.iot.vmp.conf.MediaServerConfig;
-import com.genersoft.iot.vmp.gb28181.bean.GbStream;
 import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
 import com.genersoft.iot.vmp.storager.IRedisCatchStorage;
 import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
 import com.genersoft.iot.vmp.service.IMediaService;
-import com.genersoft.iot.vmp.storager.dao.GbStreamMapper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 

src/main/java/com/genersoft/iot/vmp/service/impl/StreamPushServiceImpl.java

@@ -6,7 +6,6 @@ import com.alibaba.fastjson.TypeReference;
 import com.genersoft.iot.vmp.gb28181.bean.GbStream;
 import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
 import com.genersoft.iot.vmp.media.zlm.dto.MediaItem;
-import com.genersoft.iot.vmp.media.zlm.dto.StreamProxyItem;
 import com.genersoft.iot.vmp.media.zlm.dto.StreamPushItem;
 import com.genersoft.iot.vmp.service.IStreamPushService;
 import com.genersoft.iot.vmp.storager.dao.GbStreamMapper;