Remove the python2 version once again

- everybody just uses the tox command, this is no library
- python2-detox was replaced by python3-detox, nothing requires python2-tox
- finally a proper fix for [1]
- several PRs to packages bogusly buildrequiring python2-tox were merged [2]

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1366193#c8
[2] https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/RELZ7RA5DXGZYXSAGJ7RRONUN2ECJQH4/

python-tox.spec

@@ -7,7 +7,7 @@
 %global pypiname tox
 Name:           python-%{pypiname}
 Version:        2.9.1
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Virtualenv-based automation of test activities
 
 # file toxbootstrap.py is licensed under MIT License
@@ -27,35 +27,6 @@ can use for:
  - acting as a frontend to Continuous Integration servers, greatly reducing
    boilerplate and merging CI and shell-based testing.
 
-%package -n     python2-%{pypiname}
-Summary:        %{summary}
-%{?python_provide:%python_provide python2-%{pypiname}}
-BuildRequires:  python2-devel
-BuildRequires:  python2-setuptools
-BuildRequires:  python2-setuptools_scm
-
-%if %{with internet}
-# for tests
-BuildRequires:  python2-py
-BuildRequires:  python2-pytest
-BuildRequires:  python2-virtualenv >= 1.11.2
-%endif
-
-%?python_enable_dependency_generator
-
-%description -n python2-%{pypiname}
-Tox as is a generic virtualenv management and test command line tool you
-can use for:
-
- - checking your package installs correctly with different Python versions
-   and interpreters
- - running your tests in each of the environments, configuring your test tool
-   of choice
- - acting as a frontend to Continuous Integration servers, greatly reducing
-   boilerplate and merging CI and shell-based testing.
-
-This package contains just the module you can import from Python 2,
-for the actual command line utility, dnf install tox.
 
 %package -n python3-%{pypiname}
 Summary:        %{summary}
@@ -78,6 +49,9 @@ Recommends:     pypy3-devel
 Recommends:     python2-devel
 Recommends:     python3-devel
 
+# Replace the python2 version
+Obsoletes:      python2-tox < 2.9.1-4
+
 %if %{with internet}
 # for tests
 BuildRequires:  python3-py
@@ -85,6 +59,8 @@ BuildRequires:  python3-pytest
 BuildRequires:  python3-virtualenv
 %endif
 
+%?python_enable_dependency_generator
+
 %description -n python3-%{pypiname}
 Tox as is a generic virtualenv management and test command line tool you
 can use for:
@@ -103,28 +79,18 @@ can use for:
 rm -rf %{pypiname}.egg-info
 
 %build
-%py2_build
 %py3_build
 
 
 %install
-%py2_install
-rm %{buildroot}%{_bindir}/%{pypiname}*
-
 %py3_install
 
 # if internet connection available, run tests
 %if %{with internet}
 %check
-TOXENV=py27 %{__python2} setup.py test
 TOXENV=py%{python3_version_nodots} %{__python3} setup.py test
 %endif
 
-%files -n python2-%{pypiname}
-%license LICENSE
-%{python2_sitelib}/%{pypiname}
-%{python2_sitelib}/%{pypiname}-%{version}-py2.?.egg-info
-
 %files -n python3-%{pypiname}
 %{_bindir}/%{pypiname}
 %{_bindir}/%{pypiname}-quickstart
@@ -132,6 +98,9 @@ TOXENV=py%{python3_version_nodots} %{__python3} setup.py test
 %{python3_sitelib}/%{pypiname}-%{version}-py%{python3_version}.egg-info
 
 %changelog
+* Tue May 15 2018 Miro Hrončok <mhroncok@redhat.com> - 2.9.1-6
+- Remove the python2 version once again
+
 * Mon May 07 2018 Miro Hrončok <mhroncok@redhat.com> - 2.9.1-5
 - Add python2 back, see #1575667