qemu: Remove an unnecessary variables
qemu: Remove an unnecessary variables

qemuCaps is no longer used anywhere in these functions,
so it can be deleted.

eskultety/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,eskultety/libvirt,datto/libvirt,zippy2/libvirt,crobinso/libvirt,fabianfreyer/libvirt,taget/libvirt,andreabolognani/libvirt,olafhering/libvirt,olafhering/libvirt,nertpinx/libvirt,datto/libvirt,crobinso/libvirt,fabianfreyer/libvirt,olafhering/libvirt,nertpinx/libvirt,taget/libvirt,libvirt/libvirt,datto/libvirt,eskultety/libvirt,jardasgit/libvirt,crobinso/libvirt,jardasgit/libvirt,taget/libvirt,zippy2/libvirt,jfehlig/libvirt,nertpinx/libvirt,andreabolognani/libvirt,zippy2/libvirt,jardasgit/libvirt,andreabolognani/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,datto/libvirt,jfehlig/libvirt,nertpinx/libvirt,libvirt/libvirt,crobinso/libvirt,VenkatDatta/libvirt,taget/libvirt,datto/libvirt,eskultety/libvirt,fabianfreyer/libvirt,taget/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,jfehlig/libvirt,libvirt/libvirt,libvirt/libvirt,VenkatDatta/libvirt,zippy2/libvirt,andreabolognani/libvirt,nertpinx/libvirt,eskultety/libvirt,olafhering/libvirt