Organ fixes

### Current Changes
- Removes the rejecting verb from organs, I forgot to remove this along
with organ rejection.
- Fixes droplimb runtime.
- As a result, brute damage goring and burn ashing DESTROYS whatever
limb was dismembered. They didn't do so before due to the runtime.
- Fixes another runtime in organ_external.dm
- Makes it so you can actually clone brain transplantees.
- Makes it so you can actually rejuvenate brain transplantees.
### Todo
- [ ] Make slime person braincores able to be placed in humanized
monkeys again.
- [ ] Probably fix some other stuff.

code/modules/organs/organ.dm

@@ -16,7 +16,6 @@ var/list/organ_cache = list()
 
 	var/parent_organ = "chest"
 	var/robotic = 0 //For being a robot
-	var/rejecting   // Is this organ already being rejected?
 
 	var/list/datum/autopsy_data/autopsy_data = list()
 	var/list/trace_chemicals = list() // traces of chemicals in the organ,
@@ -222,7 +221,6 @@ var/list/organ_cache = list()
 
 	loc = get_turf(owner)
 	processing_objects |= src
-	rejecting = null
 	var/datum/reagent/blood/organ_blood = locate(/datum/reagent/blood) in reagents.reagent_list
 	if(!organ_blood || !organ_blood.data["blood_DNA"])
 		owner.vessel.trans_to(src, 5, 1, 1)

code/modules/organs/organ_external.dm

@@ -201,7 +201,7 @@
 
 	// sync the organ's damage with its wounds
 	src.update_damages()
-
+	var/mob/living/carbon/owner_old = owner //Need to update health, but need a reference in case the below check cuts off a limb.
 	//If limb took enough damage, try to cut or tear it off
 	if(owner && loc == owner)
 		if(!cannot_amputate && config.limbs_can_break && (brute_dam + burn_dam) >= (max_damage * config.organ_health_multiplier))
@@ -216,7 +216,7 @@
 				else
 					droplimb(0,DROPLIMB_BLUNT)
 
-	owner.updatehealth()
+	owner_old.updatehealth()
 	return update_icon()
 
 /obj/item/organ/external/proc/heal_damage(brute, burn, internal = 0, robo_repair = 0)
@@ -661,7 +661,7 @@ Note that amputating the affected organ does in fact remove the infection from t
 		if(DROPLIMB_BURN)
 			new /obj/effect/decal/cleanable/ash(get_turf(victim))
 		if(DROPLIMB_BLUNT)
-			var/obj/effect/decal/cleanable/blood/gibs/gore = new owner.species.single_gib_type(get_turf(victim))
+			var/obj/effect/decal/cleanable/blood/gibs/gore = new victim.species.single_gib_type(get_turf(victim))
 			if(victim.species.flesh_color)
 				gore.fleshcolor = victim.species.flesh_color
 			if(victim.species.blood_color)