genxml: drop gen10

Finishing off the job started in !6899

v2: Remove remaining gen10_pack.h include (Sagar)

v3: Forgot isl gen10 removal (Lionel)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7185>
6 files changed