[NetworkManager-openvpn] import-export: fix coding style of compress test

[Thomas Haller <thaller src gnome org>]

commit 5b038a581f8c4d529d25be6c0af55e115d2536d2
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Mon Mar 30 08:57:50 2020 +0200

    import-export: fix coding style of compress test
    
    https://gitlab.gnome.org/GNOME/NetworkManager-openvpn/-/merge_requests/21

 properties/tests/test-import-export.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
---
diff --git a/properties/tests/test-import-export.c b/properties/tests/test-import-export.c
index 52944e0..ed63529 100644
--- a/properties/tests/test-import-export.c
+++ b/properties/tests/test-import-export.c
@@ -986,21 +986,15 @@ static void
 test_compress_import (void)
 {
        _CREATE_PLUGIN (plugin);
-       NMConnection *connection;
+       gs_unref_object NMConnection *connection = NULL;
        NMSettingVpn *s_vpn;
 
        connection = get_basic_connection (plugin, SRCDIR, "compress.ovpn");
-       g_assert (connection);
 
-       /* VPN setting */
        s_vpn = nm_connection_get_setting_vpn (connection);
-       g_assert (s_vpn);
 
-       /* Data items */
        _check_item (s_vpn, NM_OPENVPN_KEY_COMP_LZO, "adaptive");
        _check_item (s_vpn, NM_OPENVPN_KEY_COMPRESS, "lzo");
-
-       g_object_unref (connection);
 }
 
 /*****************************************************************************/