peer_tmp doesn't exist if no-ec no-dh.

Reviewed-by: Rich Salz <rsalz@openssl.org>
diff --git a/ssl/statem/statem_clnt.c b/ssl/statem/statem_clnt.c
index 5fb0080..9d4af3a 100644
--- a/ssl/statem/statem_clnt.c
+++ b/ssl/statem/statem_clnt.c
@@ -1583,8 +1583,10 @@
 
     save_param_start = *pkt;
 
+#if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
     EVP_PKEY_free(s->s3->peer_tmp);
     s->s3->peer_tmp = NULL;
+#endif
 
     if (alg_k & SSL_PSK) {
         if (!tls_process_ske_psk_preamble(s, pkt, &al))