remove 512 version checks

code/game/machinery/_machinery.dm

@@ -481,15 +481,7 @@ Class Procs:
 /obj/machinery/proc/adjust_item_drop_location(atom/movable/AM)	// Adjust item drop location to a 3x3 grid inside the tile, returns slot id from 0 to 8
 	var/md5 = md5(AM.name)										// Oh, and it's deterministic too. A specific item will always drop from the same slot.
 	for (var/i in 1 to 32)
-		#if DM_VERSION >= 513
-		#warning 512 is definitely stable now, remove the old code
-		#endif
-
-		#if DM_VERSION >= 512
 		. += hex2num(md5[i])
-		#else
-		. += hex2num(copytext(md5,i,i+1))
-		#endif
 	. = . % 9
 	AM.pixel_x = -8 + ((.%3)*8)
 	AM.pixel_y = -8 + (round( . / 3)*8)