free NULL cleanup 10

Avoid checking for NULL before calling free functions.  This gets
ssl.*free:
    ssl_sess_cert_free ssl_free ssl_excert_free ssl_cert_free
    SSL_free SSL_SRP_CTX_free SSL_SESSION_free SSL_CTX_free
    SSL_CTX_SRP_CTX_free SSL_CONF_CTX_free

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
diff --git a/test/ssltest.c b/test/ssltest.c
index c9f5b4d..6ad6342 100644
--- a/test/ssltest.c
+++ b/test/ssltest.c
@@ -1789,15 +1789,11 @@
     SSL_free(c_ssl);
 
  end:
-    if (s_ctx != NULL)
-        SSL_CTX_free(s_ctx);
-    if (c_ctx != NULL)
-        SSL_CTX_free(c_ctx);
+    SSL_CTX_free(s_ctx);
+    SSL_CTX_free(c_ctx);
 
-    if (s_cctx)
-        SSL_CONF_CTX_free(s_cctx);
-    if (c_cctx)
-        SSL_CONF_CTX_free(c_cctx);
+    SSL_CONF_CTX_free(s_cctx);
+    SSL_CONF_CTX_free(c_cctx);
     sk_OPENSSL_STRING_free(conf_args);
 
     BIO_free(bio_stdout);