Declare xc_f90_lib_m.F PRIVATE

git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@14029 bac0169d-1eea-4375-b5f6-f89d2ced9994
Remove file cp_array_utils.F

git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@14030 bac0169d-1eea-4375-b5f6-f89d2ced9994