Comment out unused variables (#3713)

* Comment out unused variables

* Address reviews

* Address more reviews

Content.Server/GameObjects/Components/Weapon/Ranged/Ammunition/ChemicalAmmoComponent.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
 using Content.Server.GameObjects.Components.Chemistry;
 using Content.Server.GameObjects.Components.Weapon.Ranged.Barrels;
@@ -12,9 +12,6 @@ namespace Content.Server.GameObjects.Components.Weapon.Ranged.Ammunition
     {
         public override string Name => "ChemicalAmmo";
 
-        [DataField("fractionTransfered")]
-        private float _fractionTransfered = 1;
-
         public override void HandleMessage(ComponentMessage message, IComponent? component)
         {
             base.HandleMessage(message, component);