[PATCH] drm/i915: Remove dead code from gen8_pte_encode

[Andi Shyti]

Hi Tvrtko,

> Commit 9275277d5324 ("drm/i915: use pat_index instead of cache_level")
> added a dedicated gen12_pte_encode but forgot to remove the Gen12 specific
> bit from gen8_pte_encode.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Fixes: 9275277d5324 ("drm/i915: use pat_index instead of cache_level")
> Cc: Fei Yang <fei.yang at intel.com>
> Cc: Andi Shyti <andi.shyti at linux.intel.com>
> Cc: Matt Roper <matthew.d.roper at intel.com>

Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com> 

Andi