This commit reverts 58e9371141 as now iris driver can import stencil.
This makes ext_external_objects-vk-stencil-display pass and X-Plane 11
vulkan rendering backend to work with anv + iris.
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Eleni Maria Stea <elene.mst@gmail.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10609>