Remove goto inside an if(0) block

There were a dozen-plus instances of this construct:
   if (0) { label: ..... }

Reviewed-by: Tim Hudson <tjh@openssl.org>

ssl/s3_lib.c

@@ -3570,7 +3570,6 @@ long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg)
             ptmp = EVP_PKEY_new();
             if (!ptmp)
                 return 0;
-            if (0) ;
 #ifndef OPENSSL_NO_RSA
             else if (sc->peer_rsa_tmp)
                 rv = EVP_PKEY_set1_RSA(ptmp, sc->peer_rsa_tmp);