Revert "Broadcast cluster's disconnected state before stopping KubeAuthProxy (#4273)" (#4412)

This reverts commit 8081d35f9c.

src/renderer/components/cluster-manager/lens-views.ts

@@ -21,7 +21,6 @@
 
 import { action, IReactionDisposer, makeObservable, observable, when } from "mobx";
 import logger from "../../../main/logger";
-import { broadcastMessage } from "../../../common/ipc";
 import { clusterVisibilityHandler } from "../../../common/cluster-ipc";
 import { ClusterStore } from "../../../common/cluster-store";
 import type { ClusterId } from "../../../common/cluster-types";
@@ -89,7 +88,6 @@ export class ClusterFrameHandler extends Singleton {
             logger.info(`[LENS-VIEW]: remove dashboard, clusterId=${clusterId}`);
             this.views.delete(clusterId);
             iframe.parentNode.removeChild(iframe);
-            broadcastMessage(`cluster:${clusterId}:frame-removed`);
             dispose();
           },
         );