To get rid of the social icons, just clear out the fields in Jevelin Settings > Social Media Icons.
For some tweaks, head over to Jevelin Settings > Footer. If you need to adjust widget areas, go to Appearance > Widgets. (Tip: If you’re on a newer WordPress version, you might need the Classic Widgets plugin.)
Right now, we’ve got features for changing the icons that appear when you hover, and you can find these under Jevelin Settings.