drm/i915: Nuke ADL pre-production Wa_22011186057

Wa_22011186057 (some CCS problem) only affected ADL A-stepping,
which I presume is pre-production hw. Drop the dead code.

Bspec: 54369
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241009182207.22900-8-ville.syrjala@linux.intel.com


Reviewed-by: Jouni Högander <jouni.hogander@intel.com>