Remove deprecated m.room.aliases references (#9431)

* Remove deprecated `m.room.aliases` references

* Update SlashCommands.tsx

Author: t3chguy

src/SlashCommands.tsx

@@ -711,7 +711,7 @@ export const Commands = [
         runFn: function(roomId, args) {
             const cli = MatrixClientPeg.get();
 
-            let targetRoomId;
+            let targetRoomId: string;
             if (args) {
                 const matches = args.match(/^(\S+)$/);
                 if (matches) {
@@ -725,16 +725,11 @@ export const Commands = [
                     // Try to find a room with this alias
                     const rooms = cli.getRooms();
                     for (let i = 0; i < rooms.length; i++) {
-                        const aliasEvents = rooms[i].currentState.getStateEvents('m.room.aliases');
-                        for (let j = 0; j < aliasEvents.length; j++) {
-                            const aliases = aliasEvents[j].getContent().aliases || [];
-                            for (let k = 0; k < aliases.length; k++) {
-                                if (aliases[k] === roomAlias) {
-                                    targetRoomId = rooms[i].roomId;
-                                    break;
-                                }
-                            }
-                            if (targetRoomId) break;
+                        if (rooms[i].getCanonicalAlias() === roomAlias ||
+                            rooms[i].getAltAliases().includes(roomAlias)
+                        ) {
+                            targetRoomId = rooms[i].roomId;
+                            break;
                         }
                         if (targetRoomId) break;
                     }

src/Unread.ts

@@ -42,7 +42,6 @@ export function eventTriggersUnreadCount(ev: MatrixEvent): boolean {
         case EventType.RoomThirdPartyInvite:
         case EventType.CallAnswer:
         case EventType.CallHangup:
-        case EventType.RoomAliases:
         case EventType.RoomCanonicalAlias:
         case EventType.RoomServerAcl:
         case M_BEACON.name:

test/Unread-test.ts

@@ -103,7 +103,6 @@ describe('eventTriggersUnreadCount()', () => {
         EventType.RoomThirdPartyInvite,
         EventType.CallAnswer,
         EventType.CallHangup,
-        EventType.RoomAliases,
         EventType.RoomCanonicalAlias,
         EventType.RoomServerAcl,
     ];