Remove secondary AllowPortForward setting.

The global setting is fine, and this simplifies
both the code and the UI.

mods/cnc/chrome/multiplayer-createserver.yaml

@@ -85,31 +85,6 @@ Container@MULTIPLAYER_CREATESERVER_PANEL:
 							Height: 20
 							Font: Regular
 							Text: Advertise Online
-						Checkbox@UPNP_CHECKBOX:
-							X: 100
-							Y: 165
-							Width: 300
-							Height: 20
-							Font: Regular
-							Text: Automatic port forwarding
-						Label@UPNP_NOTICE:
-							X: 130
-							Y: 180
-							Width: 200
-							Height: 25
-							Font: Tiny
-							Align: Left
-							WordWrap: True
-							Text: Requires Network Discovery (UPnP). Enable in Settings - Advanced.
-						Label@UPNP_UNSUPPORTED_NOTICE:
-							X: 130
-							Y: 180
-							Width: 220
-							Height: 25
-							Font: Tiny
-							Align: Left
-							WordWrap: True
-							Text: Your router does not seem to support UPnP. Please consult your router's manual.
 		Container@SIDEBAR:
 			X: PARENT_RIGHT - WIDTH
 			Y: 30