crypto: ccp - Remove unused structure field

Remove the length field from the ccp_sg_workarea since it is unused.

Signed-off-by: Tom Lendacky <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/ccp/ccp-ops.c

···
 struct ccp_sg_workarea {
 	struct scatterlist *sg;
 	unsigned int nents;
-	unsigned int length;
 
 	struct scatterlist *dma_sg;
 	struct device *dma_dev;
···
 		return 0;
 
 	wa->nents = sg_nents(sg);
-	wa->length = sg->length;
 	wa->bytes_left = len;
 	wa->sg_used = 0;