crypto: sl3516 - Remove unused declaration sl3516_ce_enqueue()

This function is never implemented and used since introduction in
commit 46c5338d ("crypto: sl3516 - Add sl3516 crypto engine")
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/gemini/sl3516-ce.h

@@ -326,8 +326,6 @@ struct sl3516_ce_alg_template {
 	unsigned long stat_bytes;
 };
 
-int sl3516_ce_enqueue(struct crypto_async_request *areq, u32 type);
-
 int sl3516_ce_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
 			 unsigned int keylen);
 int sl3516_ce_cipher_init(struct crypto_tfm *tfm);