!6 delete about python2 subpackage and use python3 replace python2 for build

From: @yeah_wang
Reviewed-by: @zengwefeng
Signed-off-by: @zengwefeng

python-idna.spec

@@ -1,18 +1,14 @@
 Name:               python-idna	
 Version:            2.10
-Release:            1
+Release:            2
 Summary:            Internationalized Domain Names in Applications (IDNA)
 License:            BSD and Python and Unicode         	
 URL:                https://github.com/kjd/idna
 Source0:            https://files.pythonhosted.org/packages/source/i/idna/idna-%{version}.tar.gz
 
 BuildArch:          noarch
-%if 0%{?with_python2}
+
-BuildRequires:      python2-devel python2-setuptools 
-%endif
-%if 0%{?with_python3}
 BuildRequires:      python3-devel python3-setuptools
-%endif
 
 %description
 A library to support the Internationalised Domain Names in
@@ -25,72 +21,35 @@ The library is also intended to act as a suitable drop-in replacement
 for the “encodings.idna” module that comes with the Python standard
 library but currently only supports the older 2003 specification.
 
-%if 0%{?with_python2}
-%package -n         python2-idna
-Summary:            Python2 package for python-idna
-Provides:           python-idna = %{version}-%{release}
-Obsoletes:          python-idna < %{version}-%{release}
-
-%description -n     python2-idna
-Python2 package for python-idna
-%endif
-
-%if 0%{?with_python3}
 %package -n         python3-idna
 Summary:            Python3 package for python-idna
 %{?python_provide:  %python_provide python3-idna}
 
 %description -n     python3-idna
 Python3 package for python-idna
-%endif
 
 %prep
 %autosetup -n idna-%{version} -p1
 
 %build
-%if 0%{?with_python2}
-%py2_build
-%endif
-
-%if 0%{?with_python3}
 %py3_build
-%endif
 
 %install
-%if 0%{?with_python2}
-%py2_install
-%endif
-
-%if 0%{?with_python3}
 %py3_install
-%endif
 
 %check
-%if 0%{?with_python2}
-%{__python2} setup.py test
-%endif
-
-%if 0%{?with_python3}
 %{__python3} setup.py test
-%endif
 
-%if 0%{?with_python2}
-%files -n python2-idna
-%defattr(-,root,root)
-%doc README.rst HISTORY.rst
-%license LICENSE.rst
-%{python2_sitelib}/*
-%endif
-
-%if 0%{?with_python3}
 %files -n python3-idna
 %defattr(-,root,root)
 %doc README.rst HISTORY.rst
 %license LICENSE.rst
 %{python3_sitelib}/*
-%endif
 
 %changelog
+* Thu Oct 29 2020 wangye <wangye70@huawei.com> - 2.10-2
+- remove python2-idna subpackage
+
 * Thu Jul 23 2020 zhouhaibo <zhouhaibo@huawei.com> - 2.10-1
 - Package update