Water Hard Del Fix (#22210)

Small mistake that makes fire extinguishers cause a hard delete. Water
effects were nulling the effect reagents before calling their parent,
but then their parent attempts to QDEL_NULL(reagents) a reference that
it can no longer correctly cleanup. The simple solution was to get rid
of the Destroy() override on effect/water since it wasn't needed.

code/game/objects/effects/chem/water.dm

@@ -9,9 +9,6 @@
 	. = ..()
 	QDEL_IN(src, 15 SECONDS)	// In case whatever made it forgets to delete it
 
-/obj/effect/effect/water/Destroy()
-	reagents = null
-	return ..()
 
 /obj/effect/effect/water/proc/set_color() // Call it after you move reagents to it
 	if(!reagents)