How to remove the RSS feed icon button/link on the top menu navigation bar?

How to remove the RSS feed icon button/link on the top menu navigation bar? So we can have more space to fit more menu items.

Theme name WPMU Nelo. Link:
https://premium.wpmudev.org/project/wpmu-nelo-special-cms-frontpage-theme/

p.s. Why can't I attach any screenshot now in the tread?

Thanks!