Remove redundant read-only VV from datafields (#12626)

Content.Shared/Weapons/Ranged/Components/BatteryAmmoProviderComponent.cs

@@ -5,7 +5,7 @@ public abstract class BatteryAmmoProviderComponent : AmmoProviderComponent
     /// <summary>
     /// How much battery it costs to fire once.
     /// </summary>
-    [ViewVariables, DataField("fireCost")]
+    [DataField("fireCost")]
     public float FireCost = 100;
 
     // Batteries aren't predicted which means we need to track the battery and manually count it ourselves woo!