Remove remnant of SRP.

Dead #ifdef.

Change-Id: Ic8fcd56a2ee15dc4f8be485cd784eb1399640365
Reviewed-on: https://boringssl-review.googlesource.com/2101
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/ssl/s3_pkt.c b/ssl/s3_pkt.c
index 0df6a3c..65859a0 100644
--- a/ssl/s3_pkt.c
+++ b/ssl/s3_pkt.c
@@ -1237,10 +1237,6 @@
 				OPENSSL_PUT_ERROR(SSL, ssl3_read_bytes, SSL_R_NO_RENEGOTIATION);
 				goto f_err;
 				}
-#ifdef SSL_AD_MISSING_SRP_USERNAME
-			else if (alert_descr == SSL_AD_MISSING_SRP_USERNAME)
-				return(0);
-#endif
 			}
 		else if (alert_level == 2) /* fatal */
 			{