Cleanup warnings: CS0414 (#5892)

* Clean up

* Use #pragma

Robust.Shared/Physics/Systems/FixtureSystem.cs

@@ -24,7 +24,9 @@ namespace Robust.Shared.Physics.Systems
         [Dependency] private readonly EntityLookupSystem _lookup = default!;
         [Dependency] private readonly SharedBroadphaseSystem _broadphase = default!;
         [Dependency] private readonly SharedPhysicsSystem _physics = default!;
+#pragma warning disable CS0414
         [Dependency] private readonly IGameTiming _timing = default!;
+#pragma warning restore CS0414
         private EntityQuery<PhysicsMapComponent> _mapQuery;
         private EntityQuery<PhysicsComponent> _physicsQuery;
         private EntityQuery<FixturesComponent> _fixtureQuery;

Robust.Shared/Physics/Systems/SharedPhysicsSystem.Queries.cs

@@ -21,8 +21,10 @@ namespace Robust.Shared.Physics.Systems
      */
     public partial class SharedPhysicsSystem
     {
+#pragma warning disable CS0414
         [Dependency] private readonly SharedDebugRayDrawingSystem _sharedDebugRaySystem = default!;
         [Dependency] private readonly INetManager _netMan = default!;
+#pragma warning restore CS0414
 
         /// <summary>
         /// Checks to see if the specified collision rectangle collides with any of the physBodies under management.