Remove ellipses from custom excerpts?

Thank you for a beautiful theme! I would like to remove the ellipses that appear after excerpts in the High Responsive theme. I've already created a child theme so that I can create custom excerpts for all content, so I'd like the excerpts to just end with a period. I tried some basic Google searches, but none of the suggested code seems to fix the problem. Is there a small tweak to the functions.php? The site is audrajwolfe.com. As an example, see the ... in the text on the featured slider. I want to remove that. Thanks!