maint: Drop autobuild.sh

The Test-AutoBuild project, that this script is supposed
to be used with, hasn't seen any activity in ~7 years;
these days, libvirt-python CI builds are happening on the
Jenkins-based CentOS CI environment under the libvirt
umbrella[1], and in that context the script is not used
at all.

[1] https://ci.centos.org/view/libvirt/

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

autobuild.sh

@@ -1,30 +0,0 @@
-#!/bin/sh
-
-set -ve
-
-: ${AUTOBUILD_INSTALL_ROOT="$HOME/builder"}
-
-rm -rf MANIFEST dist build
-
-
-python2 setup.py sdist
-
-python2 setup.py build
-python2 setup.py test
-python2 setup.py install --root="$AUTOBUILD_INSTALL_ROOT"
-
-if test -f /usr/bin/python3 ; then
-  python3 setup.py build
-  python3 setup.py test
-  python3 setup.py install --root="$AUTOBUILD_INSTALL_ROOT"
-fi
-
-type -p /usr/bin/rpmbuild > /dev/null 2>&1 || exit 0
-
-if [ -n "$AUTOBUILD_COUNTER" ]; then
-    EXTRA_RELEASE=".auto$AUTOBUILD_COUNTER"
-else
-    NOW=`date +"%s"`
-    EXTRA_RELEASE=".$USER$NOW"
-fi
-rpmbuild --nodeps --define "extra_release $EXTRA_RELEASE" -ta --clean dist/*.tar.gz