Fixes layering of tram rails (#71382)

## About The Pull Request
-Fixes the layering of the tram rail so that it doesn't end up below the
reinforced glass.
-Replaces the last remaining vault platform turfs with proper tram
turfs.
-Removes an un-needed layer define for turf transparency.


![image](https://user-images.githubusercontent.com/83487515/204107725-c422180b-661c-4981-8a0b-edbdb7ced9fe.png)

## Why It's Good For The Game
The tram rail becoming disconnected when it travels over glass, in
reality that'd probably derail it. So let's fix it!
## Changelog
🆑 LT3
fix: Tram platform is now entirely built with tram tiles.
fix: All the parts of the tram are now on a correct layer/plane.
remove: Removed the openspace layer on the transparency plane.
/🆑

code/datums/elements/turf_transparency.dm

@@ -181,8 +181,6 @@ GLOBAL_LIST_EMPTY(pillars_by_z)
 
 	var/turf/our_turf = target
 
-	our_turf.layer = OPENSPACE_LAYER
-
 	RegisterSignal(target, COMSIG_TURF_MULTIZ_DEL, PROC_REF(on_multiz_turf_del))
 	RegisterSignal(target, COMSIG_TURF_MULTIZ_NEW, PROC_REF(on_multiz_turf_new))