Remove serverinfo checks.

Since sanity checks are performed for all custom extensions the
serverinfo checks are no longer needed.
Reviewed-by: Emilia Käsper <emilia@openssl.org>

ssl/s3_lib.c

diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index 6504487..bb1074c 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -3345,10 +3345,6 @@
 #ifndef OPENSSL_NO_SRP
 	SSL_SRP_CTX_free(s);
 #endif
-#ifndef OPENSSL_NO_TLSEXT
-	if (s->s3->serverinfo_client_tlsext_custom_types != NULL)
-		OPENSSL_free(s->s3->serverinfo_client_tlsext_custom_types);
-#endif
 	OPENSSL_cleanse(s->s3,sizeof *s->s3);
 	OPENSSL_free(s->s3);
 	s->s3=NULL;
@@ -3393,12 +3389,6 @@
 		}
 #endif
 #ifndef OPENSSL_NO_TLSEXT
-	if (s->s3->serverinfo_client_tlsext_custom_types != NULL)
-		{
-		OPENSSL_free(s->s3->serverinfo_client_tlsext_custom_types);
-		s->s3->serverinfo_client_tlsext_custom_types = NULL;
-		}
-	s->s3->serverinfo_client_tlsext_custom_types_count = 0;
 #ifndef OPENSSL_NO_EC
 	s->s3->is_probably_safari = 0;
 #endif /* !OPENSSL_NO_EC */

ssl/ssl3.h

diff --git a/ssl/ssl3.h b/ssl/ssl3.h
index d3167cf..29cb184 100644
--- a/ssl/ssl3.h
+++ b/ssl/ssl3.h
@@ -584,12 +584,6 @@
 #endif
 
 #ifndef OPENSSL_NO_TLSEXT
-        /* serverinfo_client_tlsext_custom_types contains an array of TLS Extension types which
-         * were advertised by the client in its ClientHello and leveraged by ServerInfo TLS extension callbacks.
-	 * The array does not contain any duplicates, and is in the same order
-	 * as the types were received in the client hello. */
-        unsigned short *serverinfo_client_tlsext_custom_types;
-        size_t serverinfo_client_tlsext_custom_types_count; /* how many serverinfo_client_tlsext_custom_types */
 
 	/* ALPN information
 	 * (we are in the process of transitioning from NPN to ALPN.) */

ssl/ssl_rsa.c

diff --git a/ssl/ssl_rsa.c b/ssl/ssl_rsa.c
index c76a2a3..e599533 100644
--- a/ssl/ssl_rsa.c
+++ b/ssl/ssl_rsa.c
@@ -863,7 +863,6 @@
 				   unsigned short inlen, int *al,
 				   void *arg)
 	{
-	size_t i = 0;
 
 	if (inlen != 0)
 		{
@@ -871,28 +870,6 @@
 		return 0;
 		}
 
-	/* if already in list, error out */
-	for (i = 0; i < s->s3->serverinfo_client_tlsext_custom_types_count; i++)
-		{
-		if (s->s3->serverinfo_client_tlsext_custom_types[i] == ext_type)
-			{
-			*al = SSL_AD_DECODE_ERROR;
-			return 0;
-			}
-		}
-	s->s3->serverinfo_client_tlsext_custom_types_count++;
-	s->s3->serverinfo_client_tlsext_custom_types = OPENSSL_realloc(
-	s->s3->serverinfo_client_tlsext_custom_types,
-	s->s3->serverinfo_client_tlsext_custom_types_count * 2);
-	if (s->s3->serverinfo_client_tlsext_custom_types == NULL)
-		{
-		s->s3->serverinfo_client_tlsext_custom_types_count = 0;
-		*al = TLS1_AD_INTERNAL_ERROR;
-		return 0;
-		}
-	s->s3->serverinfo_client_tlsext_custom_types[
-	s->s3->serverinfo_client_tlsext_custom_types_count - 1] = ext_type;
-
 	return 1;
 	}
 
@@ -902,22 +879,6 @@
 	{
 	const unsigned char *serverinfo = NULL;
 	size_t serverinfo_length = 0;
-	size_t i = 0;
-	unsigned int match = 0;
-	/* Did the client send a TLS extension for this type? */
-	for (i = 0; i < s->s3->serverinfo_client_tlsext_custom_types_count; i++)
-		{
-		if (s->s3->serverinfo_client_tlsext_custom_types[i] == ext_type)
-			{
-			match = 1;
-			break;
-			}
-		}
-	if (!match)
-		{
-		/* extension not sent by client...don't send extension */
-		return -1;
-		}
 
 	/* Is there serverinfo data for the chosen server cert? */
 	if ((ssl_get_server_cert_serverinfo(s, &serverinfo,

ssl/t1_lib.c

diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 86fb69c..f94a4c0 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -1929,14 +1929,6 @@
 		s->s3->alpn_selected = NULL;
 		}
 
-	/* Clear observed custom extensions */
-	s->s3->serverinfo_client_tlsext_custom_types_count = 0;
-	if (s->s3->serverinfo_client_tlsext_custom_types != NULL)
-		{
-		OPENSSL_free(s->s3->serverinfo_client_tlsext_custom_types);
-		s->s3->serverinfo_client_tlsext_custom_types = NULL;
-		}
-
 #ifndef OPENSSL_NO_HEARTBEATS
 	s->tlsext_heartbeat &= ~(SSL_TLSEXT_HB_ENABLED |
 	                       SSL_TLSEXT_HB_DONT_SEND_REQUESTS);