Consolidates some /Destroy()s to make them properly delete (#17046)

* The mob/living/Destroy() consolidation

* The mob/Destroy() consolidation

* The /mob/living/carbon/human consolidation

* The datum/Destroy() Consolidation

* The /atom/movable/Destroy() Consolidation

* for human

code/datums/datum.dm

@@ -126,6 +126,8 @@
 
 	SStgui.close_uis(src)
 
+	SEND_SIGNAL(src,COMSIG_OBSERVER_DESTROYED)
+
 	#ifdef REFERENCE_TRACKING
 	if(find_references_on_destroy)
 		return QDEL_HINT_FINDREFERENCE

code/datums/observation/destroyed.dm

@@ -10,7 +10,3 @@
 	name = "Destroyed"
 */
 //Deprecated in favor of Comsigs
-
-/datum/Destroy()
-	SEND_SIGNAL(src,COMSIG_OBSERVER_DESTROYED)
-	. = ..()

code/datums/soul_link.dm

@@ -5,17 +5,6 @@
 	var/list/owned_soul_links	// Soul links we are the owner of.
 	var/list/shared_soul_links	// Soul links we are a/the sharer of.
 
-/mob/living/Destroy()
-	for(var/datum/soul_link/S as anything in owned_soul_links)
-		S.owner_died(FALSE)
-		qdel(S) // If the owner is destroy()'d, the soullink is destroy()'d.
-	owned_soul_links = null
-	for(var/datum/soul_link/S as anything in shared_soul_links)
-		S.sharer_died(FALSE)
-		S.remove_soul_sharer(src) // If a sharer is destroy()'d, they are simply removed.
-	shared_soul_links = null
-	return ..()
-
 // Keeps track of a Mob->Mob (potentially Player->Player) connection.
 // Can be used to trigger actions on one party when events happen to another.
 // Eg: shared deaths.