bootstrap: Fix centos7 image creation

[Christof Schmitt]

On Thu, Nov 07, 2019 at 06:34:38AM +1300, Andrew Bartlett wrote:
> On Wed, 2019-11-06 at 14:36 +0100, Andreas Schneider wrote:
> > The branch, master has been updated
> >        via  35bb734d638 bootstrap: Fix centos7 image creation
> >        via  6a3b19fb170 bootstrap: Add Fedora 31
> >        via  1ba0a32e707 bootstrap: Remove Fedora 28 which is already EOL
> >       from  bf99f820778 ctdb-tests: Make process exists test more resilient
> > 
> > https://git.samba.org/?p=samba.git;a=shortlog;h=master
> > 
> > 
> > - Log -----------------------------------------------------------------
> > commit 35bb734d638e273f2fd1a19220db5f200d3e7489
> > Author: Andreas Schneider <asn at samba.org>
> > Date:   Wed Nov 6 08:43:05 2019 +0100
> > 
> >     bootstrap: Fix centos7 image creation
> >     
> >     Signed-off-by: Andreas Schneider <asn at samba.org>
> >     Reviewed-by: Alexander Bokovoy <ab at samba.org>
> >     
> >     Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
> >     Autobuild-Date(master): Wed Nov  6 13:35:17 UTC 2019 on sn-devel-184
> 
> G'Day Andreas,
> 
> I actually think we should remove nettle entirely, it is incorrectly
> listed as a dependency.  It came about due to some work we did for the
> encrypted passwords support (which metze then changed to use our
> internal AES, now removed in favour of pure GnuTLS).  
> 
> I picked this this when Christof proposed the same patch here:
> https://gitlab.com/samba-team/samba/merge_requests/875#note_239077036
> 
> He was able to successfully drop the nettle dep.
> 
> Sadly he had trouble with the ktest environment I also asked him to add
> so it hasn't merged yet. 

Yes, i can confirm that nettle-dev can be removed, as it will be pulled
in as a gnutls dependency. I just got distracted by customer work and
still need to debug the ktest issue.

Christof