chore!: remove hipchat importer

.changeset/quiet-kings-rhyme.md

@@ -0,0 +1,5 @@
+---
+'@rocket.chat/meteor': major
+---
+
+Removed the ability to import data in the HipChat Enterprise format, as it was discontinued over five years ago.

FEATURES.md

@@ -33,7 +33,6 @@
   - Incoming / Outgoing Webhooks
   - Data Importer
     - Import from Slack
-    - Import from Hipchat
   - Slack Bridge
 - Profiles
   - Custom avatars

apps/meteor/app/importer/server/classes/ImportDataConverter.ts

@@ -832,13 +832,6 @@ export class ImportDataConverter {
 		await this.updateRoomId(room._id, roomData);
 	}
 
-	public async findDMForImportedUsers(...users: Array<string>): Promise<IImportChannel | undefined> {
-		const record = await ImportData.findDMForImportedUsers(...users);
-		if (record) {
-			return record.data;
-		}
-	}
-
 	async findImportedRoomId(importId: string): Promise<string | null> {
 		if (this._roomCache.has(importId)) {
 			return this._roomCache.get(importId) as string;