hackfest : library widget remove unused code

library/Class/Systeme/ModulesAccueil/Library.php

@@ -124,11 +124,6 @@ class Class_Systeme_ModulesAccueil_Library extends Class_Systeme_ModulesAccueil_
   }
 
 
-  public function getAvailableFiltersKeys() {
-    return array_keys($this->getAvailableFiltersKeys());
-  }
-
-
   public function getFiltersDisplayModes() {
     return [static::DISPLAY_TAB => $this->_('Onglets'),
             static::DISPLAY_LIST => $this->_('Liste')];