Decapitation creampie fix [Fix] (#19701) (#31749)

* creampie fixes

prevent stacking creampie overlays.
makes cleaning it easier.
also fixing the creamy decapitation bug. ( #19701)

* optimize

* Revert "creampie fixes"

This reverts commit cb1d5bf254339442c977c0400317b20d3d130970.

* Split Issues

making sure we have one PR per issue.

* head removal fix

code/modules/surgery/bodyparts/dismemberment.dm

@@ -219,6 +219,8 @@
 			var/obj/item/I = X
 			owner.dropItemToGround(I, TRUE)
 
+	owner.wash_cream() //clean creampie overlay
+
 	//Handle dental implants
 	for(var/datum/action/item_action/hands_free/activate_pill/AP in owner.actions)
 		AP.Remove(owner)