drm: Remove memory debugging infrastructure.

It hasn't been used in ages, and having the user tell your how much
memory is being freed at free time is a recipe for disaster even if it
was ever used.

Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
index 7d1e53c..2607753 100644
--- a/drivers/gpu/drm/drm_context.c
+++ b/drivers/gpu/drm/drm_context.c
@@ -341,7 +341,7 @@
 			}
 	}
 
-	ctx_entry = drm_alloc(sizeof(*ctx_entry), DRM_MEM_CTXLIST);
+	ctx_entry = kmalloc(sizeof(*ctx_entry), GFP_KERNEL);
 	if (!ctx_entry) {
 		DRM_DEBUG("out of memory\n");
 		return -ENOMEM;
@@ -456,7 +456,7 @@
 		list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
 			if (pos->handle == ctx->handle) {
 				list_del(&pos->head);
-				drm_free(pos, sizeof(*pos), DRM_MEM_CTXLIST);
+				kfree(pos);
 				--dev->ctx_count;
 			}
 		}