knip: remove dead code

src/room/MuteStates.ts

@@ -27,11 +27,12 @@ import { ElementWidgetActions, widget } from "../widget";
 import { Config } from "../config/Config";
 import { useUrlParams } from "../UrlParams";
 
-/**
- * If there already are this many participants in the call, we automatically mute
- * the user.
- */
-export const MUTE_PARTICIPANT_COUNT = 8;
+// /**
+//  * If there already are this many participants in the call, we automatically mute
+//  * the user.
+//  */
+// TODO: multi-sfu dead code?
+// export const MUTE_PARTICIPANT_COUNT = 8;
 
 interface DeviceAvailable {
   enabled: boolean;

src/useMatrixRTCSessionJoinState.ts

@@ -1,40 +0,0 @@
-/*
-Copyright 2023, 2024 New Vector Ltd.
-
-SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
-Please see LICENSE in the repository root for full details.
-*/
-
-import { logger } from "matrix-js-sdk/lib/logger";
-import {
-  type MatrixRTCSession,
-  MatrixRTCSessionEvent,
-} from "matrix-js-sdk/lib/matrixrtc";
-import { TypedEventEmitter } from "matrix-js-sdk";
-import { useCallback, useEffect } from "react";
-
-import { useTypedEventEmitterState } from "./useEvents";
-
-const dummySession = new TypedEventEmitter();
-
-export function useMatrixRTCSessionJoinState(
-  rtcSession: MatrixRTCSession | undefined,
-): boolean {
-  // React doesn't allow you to run a hook conditionally, so we have to plug in
-  // a dummy event emitter in case there is no rtcSession yet
-  const isJoined = useTypedEventEmitterState(
-    rtcSession ?? dummySession,
-    MatrixRTCSessionEvent.JoinStateChanged,
-    useCallback(() => rtcSession?.isJoined() ?? false, [rtcSession]),
-  );
-
-  useEffect(() => {
-    logger.info(
-      `Session in room ${rtcSession?.room.roomId} changed to ${
-        isJoined ? "joined" : "left"
-      }`,
-    );
-  }, [rtcSession, isJoined]);
-
-  return isJoined;
-}

src/utils/test-fixtures.ts

@@ -9,7 +9,6 @@ import {
   mockRtcMembership,
   mockMatrixRoomMember,
   mockRemoteParticipant,
-  mockLocalParticipant,
 } from "./test";
 
 export const localRtcMember = mockRtcMembership("@carol:example.org", "1111");
@@ -18,7 +17,7 @@ export const localRtcMemberDevice2 = mockRtcMembership(
   "2222",
 );
 export const local = mockMatrixRoomMember(localRtcMember);
-export const localParticipant = mockLocalParticipant({ identity: "" });
+// export const localParticipant = mockLocalParticipant({ identity: "" });
 export const localId = `${local.userId}:${localRtcMember.deviceId}`;
 
 export const aliceRtcMember = mockRtcMembership("@alice:example.org", "AAAA");