refactor: removing unnecessary odin imports

Author: GieziJo

Editor/FieldInfoHelper.cs

@@ -13,7 +13,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using Sirenix.OdinInspector;
 using UnityEngine;
 
 namespace Giezi.Tools
@@ -37,7 +36,7 @@ public static FieldInfo GetFieldRecursively(Type type, string attributeName)
 
         public static IEnumerable<FieldInfo> GetAllFields(Type t)
         {
-            if (t == null || t == typeof(ScriptableObject) || t == typeof(SerializedScriptableObject))
+            if (t == null || t == typeof(ScriptableObject))
                 return Enumerable.Empty<FieldInfo>();
             return t.GetFields(bindFlags).Concat(GetAllFields(t.BaseType));
         }

Editor/SOVariant.cs

@@ -8,8 +8,6 @@
 // Change History:
 //==================================
 
-
-using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;