Don't adhere to slowdown in MAPMODE/TELEPORTERMODE

Now that you have a mini menu in MAPMODE, it's a bit annoying to have to
deal with the slowed-down timestep when pressing left/right/ACTION
inside it. Especially since going to an options menu restores the
timestep back to normal (because it's in TITLEMODE). Also removed it
from TELEPORTERMODE for consistency.

desktop_version/src/main.cpp

@@ -405,7 +405,7 @@ void inline deltaloop()
     {
         timesteplimit = 24;
     }
-    else if (game.gamestate == GAMEMODE || game.gamestate == MAPMODE || game.gamestate == TELEPORTERMODE)
+    else if (game.gamestate == GAMEMODE)
     {
         timesteplimit = game.gameframerate;
     }