Hello,
1) Go to Theme Options > Header builder > remove Newsletter element from the header area connection block https://prnt.sc/1x319sv
2) These icons are share icons, not just links to your social media. You can what share icons to show the in Theme Options > Social Sharing. If you want just to hide all the icons in the QV then go to Theme Options > WooCommerce > Shop elements > Quick View > disable Share icons element.
Please, create new topic if you have other issues. Don’t mix a few problems in one topic to avoid misunderstanding.
Regards