There will be a plain file tracking the last released version.

The rest will be simplified to print it where needed. The version
augmented by the current git status was not working anyway since we've
switched to autoconf. The result of version.h with the potential git
status was generated at configure time, which does not mean it's
accurate regarding the git status.

Signed-off-by: David Sterba <dsterba@suse.com>