[media] marvell-cam: no need to initialize the DMA buffers

This was an old debugging thing from years ago.  It's only done at
initialization time, but it's still unnecessary; take it out.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/marvell-ccic/mcam-core.c

@@ -499,8 +499,6 @@ static int mcam_alloc_dma_bufs(struct mcam_camera *cam, int loadtime)
 			cam_warn(cam, "Failed to allocate DMA buffer\n");
 			break;
 		}
-		/* For debug, remove eventually */
-		memset(cam->dma_bufs[i], 0xcc, cam->dma_buf_size);
 		(cam->nbufs)++;
 	}