Remove abandoned Voice Broadcasts labs flag (#28548)

* Remove abandoned Voice Broadcasts labs flag

Any existing voice broadcasts will be shown as a series of voice messages which will sequence play as normal

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Remove dead code

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update snapshots

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

---------

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/TextForEvent.tsx

@@ -36,7 +36,6 @@ import AccessibleButton from "./components/views/elements/AccessibleButton";
 import RightPanelStore from "./stores/right-panel/RightPanelStore";
 import { highlightEvent, isLocationEvent } from "./utils/EventUtils";
 import { ElementCall } from "./models/Call";
-import { textForVoiceBroadcastStoppedEvent, VoiceBroadcastInfoEventType } from "./voice-broadcast";
 import { getSenderName } from "./utils/event/getSenderName";
 import PosthogTrackers from "./PosthogTrackers.ts";
 
@@ -906,7 +905,6 @@ const stateHandlers: IHandlers = {
     // TODO: Enable support for m.widget event type (https://github.com/vector-im/element-web/issues/13111)
     "im.vector.modular.widgets": textForWidgetEvent,
     [WIDGET_LAYOUT_EVENT_TYPE]: textForWidgetLayoutEvent,
-    [VoiceBroadcastInfoEventType]: textForVoiceBroadcastStoppedEvent,
 };
 
 // Add all the Mjolnir stuff to the renderer