[MIRROR] fixes stack memleaks (#11598)

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>
Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/game/objects/items/stacks/stack.dm

@@ -48,8 +48,6 @@
 	AddElement(/datum/element/sellable/material_stack)
 
 /obj/item/stack/Destroy()
-	if(uses_charge)
-		return 1
 	if (src && usr && usr.machine == src)
 		usr << browse(null, "window=stack")
 	if(islist(synths))

code/game/objects/items/weapons/RMS.dm

@@ -69,7 +69,7 @@ var/list/RMS_random_malfunction = list(/obj/item/fbp_backup_cell,
 	spark_system.attach(src)
 	add_overlay("rms_charge[charge_stage]")
 
-/obj/item/pipe_dispenser/Destroy()
+/obj/item/rms/Destroy()
 	QDEL_NULL(spark_system)
 	return ..()