tests: virstoragetest: Remove now unused pathAbs
tests: virstoragetest: Remove now unused pathAbs

Separately remove the now unused variable.

libvirt/libvirt,nertpinx/libvirt,libvirt/libvirt,zippy2/libvirt,libvirt/libvirt,libvirt/libvirt,crobinso/libvirt,shugaoye/libvirt,fabianfreyer/libvirt,elmarco/libvirt,agx/libvirt,andreabolognani/libvirt,shugaoye/libvirt,zippy2/libvirt,shugaoye/libvirt,jardasgit/libvirt,elmarco/libvirt,agx/libvirt,eskultety/libvirt,rlaager/libvirt,elmarco/libvirt,olafhering/libvirt,datto/libvirt,zippy2/libvirt,datto/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,eskultety/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,taget/libvirt,fabianfreyer/libvirt,crobinso/libvirt,jardasgit/libvirt,taget/libvirt,andreabolognani/libvirt,rlaager/libvirt,agx/libvirt,andreabolognani/libvirt,eskultety/libvirt,olafhering/libvirt,crobinso/libvirt,eskultety/libvirt,nertpinx/libvirt,rlaager/libvirt,datto/libvirt,datto/libvirt,rlaager/libvirt,taget/libvirt,eskultety/libvirt,olafhering/libvirt,crobinso/libvirt,andreabolognani/libvirt,zippy2/libvirt,rlaager/libvirt,nertpinx/libvirt,jfehlig/libvirt,agx/libvirt,fabianfreyer/libvirt,datto/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,agx/libvirt,elmarco/libvirt,taget/libvirt,nertpinx/libvirt,jardasgit/libvirt,jfehlig/libvirt,elmarco/libvirt,jardasgit/libvirt,nertpinx/libvirt,olafhering/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,taget/libvirt,shugaoye/libvirt,jfehlig/libvirt,VenkatDatta/libvirt