intel/fs/xe2+: Disable bank conflict mitigation pass for now.

Reworks:
* Added a TODO comment.

Acked-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27165>

src/intel/compiler/brw_fs_bank_conflicts.cpp

@@ -911,6 +911,10 @@ fs_visitor::opt_bank_conflicts()
 {
    assert(grf_used || !"Must be called after register allocation");
 
+   /* TODO: Re-work this pass for Gfx20+. */
+   if (devinfo->ver >= 20)
+      return false;
+
    /* No ternary instructions -- No bank conflicts. */
    if (devinfo->ver < 6)
       return false;