cleanup, simplify, and merge duplicate word mute implementations

packages/frontend/src/utility/following-feed-utils.ts

@@ -4,7 +4,6 @@
  */
 
 import { computed } from 'vue';
-import * as Misskey from 'misskey-js';
 import type { Ref, WritableComputedRef } from 'vue';
 import type { PageHeaderItem } from '@/types/page-header.js';
 import type { MenuItem } from '@/types/menu.js';
@@ -14,8 +13,6 @@ import { i18n } from '@/i18n.js';
 import { popupMenu } from '@/os.js';
 import { prefer } from '@/preferences.js';
 import { followingTab, followersTab, mutualsTab, defaultFollowingFeedState } from '@/types/following-feed.js';
-import { $i } from '@/i';
-import { checkWordMute } from '@/utility/check-word-mute';
 
 export function followingTabName(tab: FollowingFeedTab): string;
 export function followingTabName(tab: FollowingFeedTab | null | undefined): null;
@@ -153,34 +150,3 @@ function createDefaultStorage(): Ref<StorageInterface> {
 	}));
 }
 
-export function getSoftMutedWords(note: Misskey.entities.Note): string | null {
-	return getMutedWords(note, $i?.mutedWords);
-}
-
-export function getHardMutedWords(note: Misskey.entities.Note): string | null {
-	return getMutedWords(note, $i?.hardMutedWords);
-}
-
-// Match the typing used by Misskey
-type Mutes = (string | string[])[] | null | undefined;
-
-// Adapted from MkNote.ts
-function getMutedWords(note: Misskey.entities.Note, mutes: Mutes): string | null {
-	return checkMute(note, mutes)
-		?? checkMute(note.reply, mutes)
-		?? checkMute(note.renote, mutes);
-}
-
-// Adapted from check-word-mute.ts
-function checkMute(note: Misskey.entities.Note | undefined | null, mutes: Mutes): string | null {
-	if (!note) {
-		return null;
-	}
-
-	if (!mutes || mutes.length < 1) {
-		return null;
-	}
-
-	const mutedWords = checkWordMute(note, $i, mutes);
-	return mutedWords ? mutedWords.flat(2).join(', ') : null;
-}