https://www.google.com/search?q=remove+image+sizes+wordpress&rlz=1C5CHFA_enUS890US890&oq=remove+image+sizes+wor&aqs=chrome.0.0i512j69i57j0i22i30l3j0i15i22i30i625j0i15i22i30j0i390l3.4785j0j7&sourceid=chrome&ie=UTF-8
https://codexin.com/remove-unused-wordpress-image-sizes/