Style fixes for extension class, removed unneeded code.
Style fixes for extension class, removed unneeded code.

mansimas/FilterManagerBundle,murnieza/FilterManagerBundle,martiis/FilterManagerBundle,saimaz/FilterManagerBundle,Dariusp/FilterManagerBundle,Dariusp/FilterManagerBundle,ongr-io/FilterManagerBundle,murnieza/FilterManagerBundle,asev/FilterManagerBundle,martiis/FilterManagerBundle,saimaz/FilterManagerBundle,asev/FilterManagerBundle,mansimas/FilterManagerBundle