Unnecessary condition removed

This conditioned added nothing, since the buttons that need hiding
already have the value "true" in the "data-effekt-hide-class" attribute.
Merge branch 'gh-pages' of github.com:enriquemorenotent/Effeckt.css into enriquemorenotent-gh-pages

* 'gh-pages' of github.com:enriquemorenotent/Effeckt.css:
  Unnecessary condition removed