Merge pull request #6538 from Citadel-Station-13/upstream-merge-37449

[MIRROR] Removes some unused code.

code/modules/mob/dead/observer/observer.dm

@@ -320,9 +320,6 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 
 	Moved(oldloc, direct)
 
-/mob/dead/observer/is_active()
-	return 0
-
 /mob/dead/observer/verb/reenter_corpse()
 	set category = "Ghost"
 	set name = "Re-enter Corpse"

code/modules/mob/mob.dm

@@ -506,22 +506,9 @@
 		return
 	show_inv(usr)
 
-/mob/proc/is_active()
-	return (0 >= usr.stat)
-
 /mob/proc/is_muzzled()
 	return 0
 
-/mob/proc/see(message)
-	if(!is_active())
-		return 0
-	to_chat(src, message)
-	return 1
-
-/mob/proc/show_viewers(message)
-	for(var/mob/M in viewers())
-		M.see(message)
-
 /mob/Stat()
 	..()