Social Icons in Footer

Hello-

I seem to be unable to remove the Facebook and Instagram icons for the Social Media Widget, despite having only the twitter widget linked to a twitter-URL. Is there a way to change this? For instance, under the Highend theme settings, only the Twitter URL field is filled out. The remaining fields are all empty, including Facebook and Instagram. They still appear as icons in the footer, however, and link directly back to my homeURL.