Update a FIXME note in VNC client test

Connections is now default, we just have to update the test to
use it.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

tests/_vnc_client_connect_pre.pm

@@ -11,8 +11,8 @@ sub run {
     setup_tap_static('172.16.2.115', 'vnc002.test.openqa.fedoraproject.org');
     # test test: check if we can see the server
     assert_script_run "ping -c 2 172.16.2.114";
-    # FIXME https://pagure.io/fedora-workstation/issue/231 - Boxes
-    # dropped VNC functionality, no default replacement yet
+    # FIXME Connections is now in the default install, we should
+    # switch this test to using that
     assert_script_run "dnf -y install vinagre";
     desktop_vt;
 }