maint: drop bz2 tarball

At 2.68b, I asked whether anyone would miss .gz and .bz2 formats.
Consensus was overwhelming that .gz still holds a place in people's
hearts, in spite of .xz compressing to smaller files, but no one
was able to make a convincing argument for .bz2.

* configure.ac (AM_INIT_AUTOMAKE): Drop bzip2; xz wins hands down.

Signed-off-by: Eric Blake <eblake@redhat.com>
1 file changed