Removes unused code for HTML UIs (#82589)

## About The Pull Request

This is the final PR for https://hackmd.io/XLt5MoRvRxuhFbwtk4VAUA that
I've been slowly inching towards the past few months.

This removes ``updateDialog``, ``updateUsrDialog``, ``IN_USE``,
``INTERACT_MACHINE_SET_MACHINE``, and everything surrounding it. Also
fixes advanced camera consoles not booting you off when you're moved out
of reach.

We called ``check_eye`` on mob life whenever they had their machine var
set, but their machine var would never be set to anything that actually
used it, which I found to be a little funny but was also probably my
fault.

## Why It's Good For The Game

This is poor and unmaintained code used for HTML UIs that we no longer
need thanks to TGUI, we should get rid of it to encourage the use of
TGUI in the future instead.

## Changelog


🆑
fix: Advanced camera consoles now boots you off when you're moved out of
reach.
/🆑

code/modules/mapfluff/ruins/spaceruin_code/hilbertshotel.dm

@@ -352,12 +352,14 @@ GLOBAL_VAR_INIT(hhMysteryRoomNumber, rand(1, 999999))
 		var/datum/action/peephole_cancel/PHC = new
 		user.overlay_fullscreen("remote_view", /atom/movable/screen/fullscreen/impaired, 1)
 		PHC.Grant(user)
-		RegisterSignal(user, COMSIG_MOVABLE_MOVED, TYPE_PROC_REF(/atom/, check_eye), user)
+		RegisterSignal(user, COMSIG_MOVABLE_MOVED, PROC_REF(check_eye))
 
-/turf/closed/indestructible/hoteldoor/check_eye(mob/user)
-	if(get_dist(get_turf(src), get_turf(user)) >= 2)
-		for(var/datum/action/peephole_cancel/PHC in user.actions)
-			INVOKE_ASYNC(PHC, TYPE_PROC_REF(/datum/action/peephole_cancel, Trigger))
+/turf/closed/indestructible/hoteldoor/proc/check_eye(mob/user, atom/oldloc, direction)
+	SIGNAL_HANDLER
+	if(get_dist(get_turf(src), get_turf(user)) < 2)
+		return
+	for(var/datum/action/peephole_cancel/PHC in user.actions)
+		INVOKE_ASYNC(PHC, TYPE_PROC_REF(/datum/action/peephole_cancel, Trigger))
 
 /datum/action/peephole_cancel
 	name = "Cancel View"