crypto: chelsio - remove unused function

Fix the following clang warning:

drivers/crypto/chelsio/chcr_algo.c:129:19: warning: unused function
'is_ofld_imm' [-Wunused-function].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/chelsio/chcr_algo.c

@@ -126,11 +126,6 @@ static inline struct uld_ctx *ULD_CTX(struct chcr_context *ctx)
 	return container_of(ctx->dev, struct uld_ctx, dev);
 }
 
-static inline int is_ofld_imm(const struct sk_buff *skb)
-{
-	return (skb->len <= SGE_MAX_WR_LEN);
-}
-
 static inline void chcr_init_hctx_per_wr(struct chcr_ahash_req_ctx *reqctx)
 {
 	memset(&reqctx->hctx_wr, 0, sizeof(struct chcr_hctx_per_wr));