Power cell overlay now updates when exiting an object's contents (#85079)

## About The Pull Request
The charge indicator overlay on power cells is now properly updated when
the cell is charged/discharged. Before, you could use a power cell until
it's empty and the overlay wouldn't change at all.
## Why It's Good For The Game
The overlay is there to indicate the charge of the cell. It should work.
## Changelog
🆑
fix: The charge indicators on power cells now work properly.
code: Removed some now redundant power cell appearance updates
/🆑

---------

Co-authored-by: jimmyl <70376633+mc-oofert@ users.noreply.github.com>

code/modules/power/lighting/light_construct.dm

@@ -63,7 +63,6 @@
 		return
 	user.visible_message(span_notice("[user] removes [cell] from [src]!"), span_notice("You remove [cell]."))
 	user.put_in_hands(cell)
-	cell.update_appearance()
 	cell = null
 	add_fingerprint(user)