Revert "drm/xe/vf: Fixup CTB send buffer messages after migration"

Revert "drm/xe/vf: Fixup CTB send buffer messages after migration"

This reverts commit cef88d1265cac7d415606af73ba58926fd3cd8b7.

Due to change in the VF migration recovery design this code
is not needed any more.

v3:
 - Add commit message (Michal / Lucas)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20251002233824.203417-4-michal.wajdeczko@intel.com