- remove gpg-offline from bootstrap packages

- Update to new upstream release 2.4.47
* This release fixes two functional bugs related to tree walking
and the return code from getfattr. Also, a number of build system
problems were fixed.
- Remove config-guess-sub-update.patch (no longer applies),
attr-syscalls.patch (resolved differently upstream),
builddefs.in.diff (replaced by logic in specfile)
- Signature verification