Remove redundant #nullable enable (#4275)

Content.Server/Ghost/Components/GhostComponent.cs

@@ -2,7 +2,6 @@ using System;
 using Content.Shared.Ghost;
 using Robust.Shared.GameObjects;
 
-#nullable enable
 namespace Content.Server.Ghost.Components
 {
     [RegisterComponent]

Content.Server/Ghost/Components/GhostOnMoveComponent.cs

@@ -1,4 +1,3 @@
-#nullable enable
 using Content.Server.GameTicking;
 using Content.Server.Mind.Components;
 using Content.Shared.Movement.Components;

Content.Server/Ghost/Ghost.cs

@@ -1,4 +1,3 @@
-#nullable enable
 using Content.Server.Administration;
 using Content.Server.GameTicking;
 using Content.Server.Players;

Content.Server/Ghost/IGhostBooAffected.cs

@@ -1,4 +1,3 @@
-#nullable enable
 using Content.Shared.Actions.Behaviors;
 
 namespace Content.Server.Ghost

Content.Server/Ghost/Roles/MakeGhostRoleCommand.cs

@@ -1,5 +1,4 @@
-#nullable enable
-using Content.Server.Administration;
+using Content.Server.Administration;
 using Content.Server.Ghost.Roles.Components;
 using Content.Server.Mind.Components;
 using Content.Shared.Administration;

Content.Server/Ghost/Roles/MakeGhostRoleVerb.cs

@@ -1,4 +1,3 @@
-#nullable enable
 using Content.Server.Mind.Components;
 using Content.Shared.Verbs;
 using Robust.Server.Console;