lib/scatterlist.c: avoid a double memset

'sgl' is zeroed a few lines below in 'sg_init_table()'. There is no need to
clear it twice.

Remove the redundant initialization.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200920071544.368841-1-christophe.jaillet@wanadoo.frSigned-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/scatterlist.c

@@ -504,7 +504,7 @@ struct scatterlist *sgl_alloc_order(unsigned long long length,
 		nalloc++;
 	}
 	sgl = kmalloc_array(nalloc, sizeof(struct scatterlist),
-			    (gfp & ~GFP_DMA) | __GFP_ZERO);
+			    gfp & ~GFP_DMA);
 	if (!sgl)
 		return NULL;