Remove calc_verify SSL function pointer
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index fd59d2c..4e99a80 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -3889,7 +3889,10 @@
 sign:
 #endif
 
-    ssl->handshake->calc_verify( ssl, hash, &hashlen );
+    mbedtls_ssl_calc_verify(
+            mbedtls_ssl_get_minor_ver( ssl ),
+            mbedtls_ssl_suite_get_mac( ciphersuite_info ),
+            ssl, hash, &hashlen );
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)