Following are the steps to delete live Streamed pre-recorded videos from Twitch
Login to your Twitch account. Click your profile picture at top right corner.

Click Video Producer.

Click All Videos.

Click More Option Icon/three vertical dots and then click Delete.

Login to your Twitch account. Click your profile picture at top right corner.

Click Video Producer.

Click All Videos.

Click More Option Icon/three vertical dots and then click Delete.

Updated on: 02 / 08 / 2020