Fixes alternate organ removal method

- De-braining and de-eying a detached head now sets the organ's vars
correctly.
- Slime people's (and golem's) slime cores are no longer robotic, this
will keep them from getting EMPed.
- As a side effect, this also fixes not being able to transplant slime
people brains.
- Fixes unEquip dropping organs.

code/modules/organs/organ_external.dm

@@ -75,7 +75,11 @@
 				if(contents.len)
 					var/obj/item/removing = pick(contents)
 					removing.loc = get_turf(user.loc)
-					if(!(user.l_hand && user.r_hand))
+					var/obj/item/organ/O = removing
+					if(istype(O))
+						O.status |= ORGAN_CUT_AWAY
+						O.removed(user)
+					else if(!(user.l_hand && user.r_hand))
 						user.put_in_hands(removing)
 					user.visible_message("<span class='danger'><b>[user]</b> extracts [removing] from [src] with [W]!")
 				else