Hide mission stick autofires again

I hope someone comes into irc screaming about how they can't do their TAS because we don't support the exact hardware semantics of the mission stick, but the more realistic outcome is that no one ever uses the mission stick for anything

src/BizHawk.Emulation.Cores/Waterbox/NymaCore.Controller.cs

@@ -127,7 +127,7 @@ namespace BizHawk.Emulation.Cores.Waterbox
 								var data = input.Extra.AsSwitch();
 								if (data.Positions.Count > 8)
 									throw new NotImplementedException("Need code changes to support Mdfn switch with more than 8 positions");
-								
+
 								// fake switches as a series of push downs that select each state
 								// imagine the "gear" selector on a Toyota Prius
 
@@ -138,10 +138,15 @@ namespace BizHawk.Emulation.Cores.Waterbox
 								switchPreviousFrame.Add(0);
 
 								var names = data.Positions.Select(p => $"{name}: Set {p.Name}").ToArray();
-								foreach (var n in names)
+								if (!input.Name.StartsWith("AF ") && !input.Name.EndsWith(" AF")) // hack: don't support some devices
 								{
-									ret.BoolButtons.Add(n);
-									ret.CategoryLabels[n] = category;
+									foreach (var n in names)
+									{
+										{
+											ret.BoolButtons.Add(n);
+											ret.CategoryLabels[n] = category;
+										}
+									}
 								}
 
 								_thunks.Add((c, b) =>