drm/vmwgfx: Fix a bad merge in otable batch takedown

Change
2ef4fb9 ("drm/vmwgfx: Make sure bo's are unpinned before putting them back")
caused a conflict in one of the drm trees and the merge commit
68a32ba ("Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm")
accidently re-added code that the original change was removing.
Fixed by removing the incorrect buffer unpin - it has already been unpinned
two lines above.

Fixes: 68a32ba ("Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm")
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Martin Krastev <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: zackr

drivers/gpu/drm/vmwgfx/vmwgfx_mob.c

@@ -354,7 +354,6 @@ static void vmw_otable_batch_takedown(struct vmw_private *dev_priv,
 	ttm_bo_unpin(bo);
 	ttm_bo_unreserve(bo);
 
-	ttm_bo_unpin(batch->otable_bo);
 	ttm_bo_put(batch->otable_bo);
 	batch->otable_bo = NULL;
 }