Removed part of the test code that stopped it when ~/.pip.cfg existed, added test_config.cfg to default args of test_pip.py
Removed part of the test code that stopped it when ~/.pip.cfg existed, added test_config.cfg to default args of test_pip.py

h4ck3rm1k3/pip,yati-sagade/pip,wkeyword/pip,jmagnusson/pip,jythontools/pip,Ivoz/pip,harrisonfeng/pip,supriyantomaftuh/pip,ianw/pip,dstufft/pip,fiber-space/pip,haridsv/pip,supriyantomaftuh/pip,prasaianooz/pip,ncoghlan/pip,James-Firth/pip,pjdelport/pip,rbtcollins/pip,domenkozar/pip,haridsv/pip,minrk/pip,ChristopherHogan/pip,harrisonfeng/pip,atdaemon/pip,wkeyword/pip,techtonik/pip,sigmavirus24/pip,rbtcollins/pip,natefoo/pip,patricklaw/pip,James-Firth/pip,erikrose/pip,rouge8/pip,habnabit/pip,sbidoul/pip,harrisonfeng/pip,zvezdan/pip,Gabriel439/pip,patricklaw/pip,jamezpolley/pip,benesch/pip,zenlambda/pip,ChristopherHogan/pip,Carreau/pip,willingc/pip,pfmoore/pip,atdaemon/pip,benesch/pip,pjdelport/pip,caosmo/pip,h4ck3rm1k3/pip,blarghmatey/pip,esc/pip,graingert/pip,luzfcb/pip,zenlambda/pip,esc/pip,radiosilence/pip,chaoallsome/pip,esc/pip,sigmavirus24/pip,erikrose/pip,James-Firth/pip,pypa/pip,chaoallsome/pip,mattrobenolt/pip,RonnyPfannschmidt/pip,qwcode/pip,erikrose/pip,jamezpolley/pip,mindw/pip,alex/pip,mindw/pip,graingert/pip,willingc/pip,habnabit/pip,tdsmith/pip,habnabit/pip,jythontools/pip,zorosteven/pip,zvezdan/pip,zvezdan/pip,KarelJakubec/pip,jasonkying/pip,minrk/pip,blarghmatey/pip,xavfernandez/pip,sbidoul/pip,KarelJakubec/pip,pfmoore/pip,prasaianooz/pip,msabramo/pip,squidsoup/pip,ncoghlan/pip,alquerci/pip,blarghmatey/pip,rbtcollins/pip,natefoo/pip,mujiansu/pip,Gabriel439/pip,alex/pip,jythontools/pip,graingert/pip,cjerdonek/pip,sigmavirus24/pip,zorosteven/pip,h4ck3rm1k3/pip,mindw/pip,techtonik/pip,caosmo/pip,luzfcb/pip,nthall/pip,yati-sagade/pip,fiber-space/pip,willingc/pip,cjerdonek/pip,jamezpolley/pip,nthall/pip,mattrobenolt/pip,luzfcb/pip,jmagnusson/pip,fiber-space/pip,Gabriel439/pip,zenlambda/pip,atdaemon/pip,ianw/pip,RonnyPfannschmidt/pip,jasonkying/pip,RonnyPfannschmidt/pip,tdsmith/pip,chaoallsome/pip,alex/pip,qbdsoft/pip,pjdelport/pip,zorosteven/pip,qbdsoft/pip,pypa/pip,benesch/pip,davidovich/pip,qwcode/pip,ChristopherHogan/pip,nthall/pip,natefoo/pip,squidsoup/pip,pradyunsg/pip,rouge8/pip,msabramo/pip,supriyantomaftuh/pip,xavfernandez/pip,caosmo/pip,dstufft/pip,jmagnusson/pip,ncoghlan/pip,yati-sagade/pip,Carreau/pip,KarelJakubec/pip,dstufft/pip,Ivoz/pip,davidovich/pip,haridsv/pip,alquerci/pip,davidovich/pip,xavfernandez/pip,mujiansu/pip,tdsmith/pip,pradyunsg/pip,qbdsoft/pip,squidsoup/pip,techtonik/pip,prasaianooz/pip,mujiansu/pip,jasonkying/pip,rouge8/pip,wkeyword/pip