remove unused namespaces and dead file

Assets/LDtkUnity/Editor/Builders/LDtkBuilderIntGridValue.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.Tilemaps;

Assets/LDtkUnity/Editor/Builders/LDtkBuilderLayer.cs

@@ -1,5 +1,4 @@
-using UnityEditor;
-using UnityEngine;
+using UnityEngine;
 using UnityEngine.Tilemaps;
 
 namespace LDtkUnity.Editor

Assets/LDtkUnity/Editor/CustomEditor/Importer/LDtkEditorCommandUpdater.cs

@@ -1,11 +1,7 @@
-using System.Collections.Generic;
-using System.Diagnostics;
+using System.Diagnostics;
 using System.IO;
-using System.Linq;
-using System.Net;
 using UnityEditor;
 using UnityEngine;
-using Debug = UnityEngine.Debug;
 
 namespace LDtkUnity.Editor
 {

Assets/LDtkUnity/Editor/CustomEditor/SectionDrawers/LDtkSectionMain.cs

@@ -2,7 +2,6 @@
 using System.Linq;
 using UnityEditor;
 using UnityEngine;
-using UnityEngine.U2D;
 
 namespace LDtkUnity.Editor
 {

Assets/LDtkUnity/Editor/ExportNativePrefab/LDtkNativePrefabAssets.cs

@@ -1,10 +1,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using UnityEditor;
-using UnityEditor.U2D;
 using UnityEngine;
 using UnityEngine.Tilemaps;
-using UnityEngine.U2D;
 
 namespace LDtkUnity.Editor
 {

Assets/LDtkUnity/Editor/ExportNativePrefab/PathDrawer.cs

@@ -1,5 +1,4 @@
-using System;
-using System.IO;
+using System.IO;
 using UnityEditor;
 using UnityEngine;
 

Assets/LDtkUnity/Editor/ParsedField/Parsed/LDtkParsedTile.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using JetBrains.Annotations;
 using UnityEngine;
 

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkJsonImporter.cs

@@ -3,7 +3,6 @@
 using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
-using UnityEditor;
 using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.Tilemaps;

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkPpuInitializer.cs

@@ -1,5 +1,4 @@
 using UnityEditor;
-using UnityEngine;
 
 namespace LDtkUnity.Editor
 {

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkProjectImporter.cs

@@ -1,14 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
-using System.Text.RegularExpressions;
 using UnityEditor;
 using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.Tilemaps;
-using UnityEngine.U2D;
-using Utf8Json;
 using Object = UnityEngine.Object;
 #if UNITY_2020_2_OR_NEWER
 using UnityEditor.AssetImporters;

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkTilesetImporter.cs

@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Reflection;
 using System.Text;
 using Unity.Collections;
 using UnityEditor;
@@ -29,6 +28,8 @@ namespace LDtkUnity.Editor
     [ScriptedImporter(LDtkImporterConsts.TILESET_VERSION, LDtkImporterConsts.TILESET_EXT, LDtkImporterConsts.TILESET_ORDER)]
     internal sealed partial class LDtkTilesetImporter : LDtkJsonImporter<LDtkTilesetFile>
     {
+        private static bool _willRefreshTilemapsInScene;
+
         public const string PIXELS_PER_UNIT = nameof(_pixelsPerUnit);
 
         [SerializeField] internal int _pixelsPerUnit = -1;
@@ -319,8 +320,6 @@ string MakeAssetName()
 
             Debug.Assert(_additionalTiles.Count == additionalRects.Count);
         }
-
-        public static bool WillRefreshTilemapsInScene;
 
         private static void TilemapColliderTileUpdate()
         {
@@ -330,16 +329,16 @@ private static void TilemapColliderTileUpdate()
             //Using 2023.1+ is much more optimized for this sort of thing.
             //This is unfortunately a slow procedure, but there is currently no easy solution found for refreshing tilemap colliders in the scene.
 
-            if (WillRefreshTilemapsInScene)
+            if (_willRefreshTilemapsInScene)
             {
                 return;
             }
-            WillRefreshTilemapsInScene = true;
+            _willRefreshTilemapsInScene = true;
 
             EditorApplication.delayCall += () =>
             {
                 Profiler.BeginSample("TilemapColliderTileUpdate");
-                WillRefreshTilemapsInScene = false;
+                _willRefreshTilemapsInScene = false;
 
 #if UNITY_2023_1_OR_NEWER
                 TilemapCollider2D[] colliders = Object.FindObjectsByType<TilemapCollider2D>(FindObjectsInactive.Include, FindObjectsSortMode.None);

Assets/LDtkUnity/Editor/ScriptedImporter/LDtkTilesetImporterModules.cs

@@ -2,8 +2,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using UnityEditor;
-using UnityEditor.AssetImporters;
-using UnityEditor.U2D;
 using UnityEditor.U2D.Sprites;
 using UnityEngine;
 using UnityEngine.Profiling;

Assets/LDtkUnity/Editor/Utility/Artifacts/LDtkArtifactFactory.cs

@@ -1,7 +1,5 @@
-using UnityEngine;
+#if UNITY_2020_2_OR_NEWER
 
-#if UNITY_2020_2_OR_NEWER
-using UnityEditor.AssetImporters;
 #else
 using UnityEditor.Experimental.AssetImporters;
 #endif

Assets/LDtkUnity/Editor/Utility/Artifacts/LDtkBackgroundArtifactFactory.cs

@@ -1,11 +1,5 @@
 using UnityEngine;
 
-#if UNITY_2020_2_OR_NEWER
-using UnityEditor.AssetImporters;
-#else
-using UnityEditor.Experimental.AssetImporters;
-#endif
-
 namespace LDtkUnity.Editor
 {
     internal sealed class LDtkBackgroundArtifactFactory : LDtkArtifactFactory

Assets/LDtkUnity/Editor/Utility/Artifacts/LDtkBackgroundSliceCreator.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Collections.Generic;
-using UnityEditor.AssetImporters;
+using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Profiling;