Remove the deprecated "kmem_cache_t" typedef from slab.h.

Given that there is no remaining usage of the deprecated kmem_cache_t
typedef anywhere in the tree, remove that typedef.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/slab.h

@@ -14,8 +14,6 @@
 #include <linux/gfp.h>
 #include <linux/types.h>
 
-typedef struct kmem_cache kmem_cache_t __deprecated;
-
 /*
  * Flags to pass to kmem_cache_create().
  * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.