Drop unneeded build dependency on python3-unittest2

cloud-init.spec

@@ -1,6 +1,6 @@
 Name:           cloud-init
 Version:        17.1
-Release:        13%{?dist}
+Release:        14%{?dist}
 Summary:        Cloud instance init scripts
 License:        ASL 2.0 or GPLv3
 URL:            http://launchpad.net/cloud-init
@@ -54,7 +54,6 @@ BuildRequires:  python3-pyserial
 BuildRequires:  python3-PyYAML
 BuildRequires:  python3-requests
 BuildRequires:  python3-six
-BuildRequires:  python3-unittest2
 # dnf is needed to make cc_ntp unit tests work
 # https://bugs.launchpad.net/cloud-init/+bug/1721573
 BuildRequires:  /usr/bin/dnf
@@ -97,6 +96,9 @@ ssh keys and to let the user run various scripts.
 sed -i -e 's|#!/usr/bin/env python|#!/usr/bin/env python3|' \
        -e 's|#!/usr/bin/python|#!/usr/bin/python3|' tools/* cloudinit/ssh_util.py
 
+# Use unittest from the standard library
+sed -i s/unittest2/unittest/ cloudinit/tests/*.py
+sed -i s/assertItemsEqual/assertCountEqual/ tests/unittests/test_handler/*.py
 
 %build
 %py3_build
@@ -165,6 +167,9 @@ nosetests-%{python3_version} tests/unittests/
 
 
 %changelog
+* Fri Nov 08 2019 Miro Hrončok <mhroncok@redhat.com> - 17.1-14
+- Drop unneeded build dependency on python3-unittest2
+
 * Thu Oct 03 2019 Miro Hrončok <mhroncok@redhat.com> - 17.1-13
 - Rebuilt for Python 3.8.0rc1 (#1748018)