Fix format CFLAGS for Ada/Fortran with some build logs

Fix format CFLAGS for Ada/Fortran with some build logs

No longer check for "gnat" and "gfortran" packages as dependency.
Instead, apply the special handling unconditionally. This might be
slightly slower but permits running blhc on Ada/Fortran build logs which
provide no information about dependencies (e.g. when running just
dpkg-buildpackage).