get rid of mob.see_in_dark and species.darksight

They don't work with the current lighting system and cause weird artifacts.

Signed-off-by: Mloc <colmohici@gmail.com>

code/game/objects/items/weapons/AI_modules.dm

@@ -40,7 +40,7 @@ AI MODULES
 
 		if (comp.current.stat == 2 || comp.current.control_disabled == 1)
 			usr << "Upload failed. No signal is being detected from the AI."
-		else if (comp.current.see_in_dark == 0)
+		else if (!comp.current.has_power)
 			usr << "Upload failed. Only a faint signal is being detected from the AI, and it is not responding to our requests. It may be low on power."
 		else
 			src.transmitInstructions(comp.current, usr)