remove empty unused subroutine


git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@13854 bac0169d-1eea-4375-b5f6-f89d2ced9994
don't make an unused subroutine public


git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@13855 bac0169d-1eea-4375-b5f6-f89d2ced9994