Remove Remote uploads

How do i remove the option for users to use youtube and etc for uploading. At one point i thought it could have been done using the admin panel but i cannot find. Main reason i want to disable is because most of the youtube videos put on my site end up deleted, removed and etc. so i want to completely remove all youtube stuff and keep it strictly uploading actual videos

Edit templates/upload.tpl file

Findout the following and remove it

<input type="radio" name="upload_from" value="remote" /> <strong>Remote Server</strong>

Alright, Thanks