Re: [1.8.0] Remove deprecated commands

René Scharfe [off-list ref] writes:

The following four commands have been marked as deprecated in
command-list.txt for quite some time[*]:

   command          deprecated since replaced by
   ---------------- ---------------- ---------------------
   git-lost-found   2007-11-08       git fsck --lost-found
   git-peek-remote  2007-11-24       git ls-remote
   git-repo-config  2008-01-17       git config
   git-tar-tree     2007-11-08       git archive

Let's just remove them.  There's a risk that someone is still using the
old commands, of course, but they have been deprecated long enough now.

Sounds fine.