Update the pip.vendor Makefile to properly delete vendored items
Update the pip.vendor Makefile to properly delete vendored items

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