box 2pni: remove everything deprecated during 2.2-svn. This includes removal...

box 2pni: remove everything deprecated during 2.2-svn. This includes removal of the model-specific problem, as well as several property, parameter and member function names. Reviewed by Christoph

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@9304 2fb0f335-1f38-0410-981e-8018bf24f1b0