diff --git a/src/models/mastodon/emoji.ts b/src/models/mastodon/emoji.ts
deleted file mode 100644
index df19c6e758..0000000000
--- a/src/models/mastodon/emoji.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-export type IMastodonEmoji = {
-	shortcode: string,
-	url: string,
-	static_url: string,
-	visible_in_picker: boolean
-};
-
-export async function toMastodonEmojis(emoji: any): Promise<IMastodonEmoji[]> {
-	return [{
-		shortcode: emoji.name,
-		url: emoji.url,
-		static_url: emoji.url, // TODO: Implement ensuring static emoji
-		visible_in_picker: true
-	}, ...(emoji.aliases as string[] || []).map(x => ({
-		shortcode: x,
-		url: emoji.url,
-		static_url: emoji.url,
-		visible_in_picker: true
-	}))];
-}
-
-export function toMisskeyEmojiSync(emoji: IMastodonEmoji) {
-	return {
-		name: emoji.shortcode,
-		url: emoji.url
-	};
-}
-
-export function toMisskeyEmojiWithAliasesSync(emoji: IMastodonEmoji, ...aliases: string[]) {
-	return {
-		name: emoji.shortcode,
-		aliases,
-		url: emoji.url
-	};
-}