clean code

apps/app/src/components/ShareLink/ShareLinkPageView.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useMemo } from 'react';
+import React, { useMemo } from 'react';
 
 import type { IPagePopulatedToShowRevision } from '@growi/core';
 import dynamic from 'next/dynamic';