Remove outer class for temp_dir tests
Remove outer class for temp_dir tests

xavfernandez/pip,xavfernandez/pip,rouge8/pip,pfmoore/pip,sbidoul/pip,rouge8/pip,pradyunsg/pip,pfmoore/pip,sbidoul/pip,pypa/pip,pypa/pip,rouge8/pip,xavfernandez/pip,pradyunsg/pip