Removes now redundant face_at checks, allows observers to face.

Was initially an attempt to fix lying mobs being unable to change facing to but https://github.com/Baystation12/Baystation12/blob/master/code/modules/mob/mob.dm#L764 complicates this.

code/_onclick/click.dm

@@ -338,7 +338,7 @@
 				is_buckled = 1
 		else
 			is_buckled = 0
-	if( is_buckled || !A || !x || !y || !A.x || !A.y || (stat && !isobserver(src))) return
+	if(!A || !x || !y || !A.x || !A.y) return
 	var/dx = A.x - x
 	var/dy = A.y - y
 	if(!dx && !dy) return

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

@@ -605,3 +605,6 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 		src << "<span class='info'>Your key won't be shown when you speak in dead chat.</span>"
 	else
 		src << "<span class='info'>Your key will be publicly visible again.</span>"
+
+/mob/dead/observer/canface()
+	return 1