
Following the method used for EVP_MD_CTX and HMAC_CTX, EVP_CIPHER_CTX_init and EVP_CIPHER_CTX_cleanup are joined together into one function, EVP_CIPHER_CTX_reset, with EVP_CIPHER_CTX_init kept as an alias. EVP_CIPHER_CTX_cleanup fills no purpose of its own any more and is therefore removed. Reviewed-by: Rich Salz <rsalz@openssl.org>