drm/xe/vm: don't include xe_gt.h

clangd complains here, since nothing in xe_gt.h seems to be needed.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240412113144.259426-6-matthew.auld@intel.com

drivers/gpu/drm/xe/xe_vm.c

@@ -27,7 +27,6 @@
 #include "xe_device.h"
 #include "xe_drm_client.h"
 #include "xe_exec_queue.h"
-#include "xe_gt.h"
 #include "xe_gt_pagefault.h"
 #include "xe_gt_tlb_invalidation.h"
 #include "xe_migrate.h"