1 files changed, 0 insertions, 24 deletions
diff --git a/packages/frontend/src/scripts/use-document-visibility.ts b/packages/frontend/src/scripts/use-document-visibility.ts
deleted file mode 100644
index a8f4d5e03a..0000000000
--- a/packages/frontend/src/scripts/use-document-visibility.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { onMounted, onUnmounted, ref, Ref } from 'vue';
-
-export function useDocumentVisibility(): Ref<DocumentVisibilityState> {
-	const visibility = ref(document.visibilityState);
-
-	const onChange = (): void => {
-		visibility.value = document.visibilityState;
-	};
-
-	onMounted(() => {
-		document.addEventListener('visibilitychange', onChange);
-	});
-
-	onUnmounted(() => {
-		document.removeEventListener('visibilitychange', onChange);
-	});
-
-	return visibility;
-}