Make patches apply --without tests

Some patches touch tests and we didn't include the test sources --without tests,
leading to broken build. This was a long standing reoccurring problem.

Now we always include and unpack tests sources, even when we don't run them.

python-pip.spec

@@ -64,9 +64,7 @@ BuildRequires:  python-wheel-wheel
 # git clone https://github.com/pypa/pip && cd pip
 # VERSION=   # define the version you want
 # git checkout $VERSION && tar -czvf ../pip-$VERSION-tests.tar.gz tests/
-%if %{with tests}
 Source1:        pip-%{version}-tests.tar.gz
-%endif
 
 # Themes required to build the docs.
 %if %{with doc}
@@ -239,9 +237,8 @@ A Python wheel of pip to use with venv.
 
 %prep
 %setup -q -n %{srcname}-%{version}
-%if %{with tests}
 tar -xf %{SOURCE1}
-%endif
+
 %if %{with doc}
 pushd docs/html
 tar -xf %{SOURCE2}
@@ -261,10 +258,8 @@ popd
 rm src/pip/_vendor/certifi/*.pem
 sed -i '/\.pem$/d' src/pip.egg-info/SOURCES.txt
 
-%if %{with tests}
 # tests expect wheels in here
 ln -s %{python_wheeldir} tests/data/common_wheels
-%endif
 
 
 %build