remove: _HyPackageList.left.
remove: _HyPackageList.left.

Unused, this has been surviving since fc910385 two years ago.

hughsie/libhif,rpm-software-management/libhif,edynox/libdnf,cgwalters/libhif,hughsie/libhif,rpm-software-management/libhif,edynox/libdnf,rpm-software-management/libhif,edynox/libdnf,hughsie/libhif,Conan-Kudo/libhif,rpm-software-management/libdnf,rpm-software-management/libdnf,hughsie/libhif,Conan-Kudo/libhif,rpm-software-management/libhif,cgwalters/libhif,cgwalters/libhif,cgwalters/libhif,rpm-software-management/libdnf,edynox/libdnf,rpm-software-management/libdnf,Conan-Kudo/libhif,Conan-Kudo/libhif