add 设置网桥初始值

jetlinks-manager/bridge-manager/src/main/java/org/jetlinks/community/bridge/server/aliyun/AliBridgeServer.java

@@ -146,14 +146,6 @@ public class AliBridgeServer extends AbstractClusterUniqueTask<AliBridgeServer>
     }
 
     public Mono<AliBridgeServer> refreshBootStrap(AliIotBridgeEntity params,boolean broadcast){
-        if (this.bootstrap!=null) {
-            try {
-                this.bootstrap.disconnectBridge();
-            }catch (Exception e){
-                log.error(e.getMessage());
-            }
-            this.bootstrap=null;
-        }
         start.set(false);
         return initBridge(params,broadcast)
             .thenReturn(this);