Updates Balaclava Sprites (#3409)

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## About The Pull Request
Just a quickie, this PR updates all balaclavas to follow the aesthetic
set by the NGR's balaclava. This also removes the unused russian
balaclava sprites, which is non-player facing.


![image](https://github.com/user-attachments/assets/83a7c85e-823d-47b9-bb2f-4d62ced93f24)

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## Why It's Good For The Game
Clean sprite good
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## Changelog

:cl: PositiveEntropy
imageadd: Resprites all balaclavas!
/:cl:

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code/modules/clothing/masks/boxing.dm

@@ -4,7 +4,7 @@
 	icon_state = "balaclava"
 	item_state = "balaclava"
 	flags_inv = HIDEFACE|HIDEHAIR|HIDEFACIALHAIR
-	visor_flags_inv = HIDEFACE|HIDEFACIALHAIR
+	visor_flags_inv = HIDEFACE|HIDEHAIR|HIDEFACIALHAIR
 	w_class = WEIGHT_CLASS_SMALL
 	actions_types = list(/datum/action/item_action/adjust)