e_dasync: remove empty statement

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17528)

engines/e_dasync.c

@@ -209,7 +209,6 @@ static int dasync_cipher_nids[] = {
 static int bind_dasync(ENGINE *e)
 {
     /* Setup RSA */
-    ;
     if ((dasync_rsa_orig = EVP_PKEY_meth_find(EVP_PKEY_RSA)) == NULL
         || (dasync_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA,
                                            EVP_PKEY_FLAG_AUTOARGLEN)) == NULL)