drm/xe: remove unused struct 'xe_gt_desc'

'xe_gt_desc' is unused since
commit 1e6c20be6c83 ("drm/xe: Drop extra_gts[] declarations and
XE_GT_TYPE_REMOTE").

Remove it.

Signed-off-by: Dr. David Alan Gilbert <[e-mail]>
Link:
https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Reviewed-by: Rodrigo Vivi <[e-mail]>
Signed-off-by: Rodrigo Vivi <[e-mail]>

drivers/gpu/drm/xe/xe_pci.c

···
 	const u16 *pciidlist;
 };
 
-struct xe_gt_desc {
-	enum xe_gt_type type;
-	u32 mmio_adj_limit;
-	u32 mmio_adj_offset;
-};
-
 struct xe_device_desc {
 	/* Should only ever be set for platforms without GMD_ID */
 	const struct xe_graphics_desc *graphics;