drm/ttm: drop ttm->glob

The pointer is available as ttm->bdev->glob as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

include/drm/ttm/ttm_bo_driver.h

@@ -123,7 +123,6 @@ struct ttm_tt {
 	uint32_t page_flags;
 	unsigned long num_pages;
 	struct sg_table *sg; /* for SG objects via dma-buf */
-	struct ttm_bo_global *glob;
 	struct file *swap_storage;
 	enum ttm_caching_state caching_state;
 	enum {