drop messaging (#9919)

* drop messaging (from backend)

* wip

packages/backend/src/misc/schema.ts

@@ -10,7 +10,6 @@ import {
 import { packedNoteSchema } from '@/models/schema/note.js';
 import { packedUserListSchema } from '@/models/schema/user-list.js';
 import { packedAppSchema } from '@/models/schema/app.js';
-import { packedMessagingMessageSchema } from '@/models/schema/messaging-message.js';
 import { packedNotificationSchema } from '@/models/schema/notification.js';
 import { packedDriveFileSchema } from '@/models/schema/drive-file.js';
 import { packedDriveFolderSchema } from '@/models/schema/drive-folder.js';
@@ -42,7 +41,6 @@ export const refs = {
 	UserList: packedUserListSchema,
 	UserGroup: packedUserGroupSchema,
 	App: packedAppSchema,
-	MessagingMessage: packedMessagingMessageSchema,
 	Note: packedNoteSchema,
 	NoteReaction: packedNoteReactionSchema,
 	NoteFavorite: packedNoteFavoriteSchema,