qemu: driver: Remove useless forward declarations
qemu: driver: Remove useless forward declarations

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