dist/glide.esm.js
function removeClass(controls) {
      var item = controls[Glide.index];

      if (item) {
        item.classList.remove(Glide.settings.classes.activeNav);
      }
    }
function removeClass(controls) {
      var item = controls[Glide.index];

      if (item) {
        item.classList.remove(Glide.settings.classes.activeNav);
      }
    }
function removeClass ( controls ) { var item = controls [ Glide . index ] ; if ( item ) { item . classList . remove ( Glide . settings . classes . activeNav ) ; } }
Removes active class from active control.

@param  {HTMLElement} controls
@return {Void}
Removes active class from active control .