minor fixes

com.unity.uiwidgets/Editor/UIWidgetsPanelEditor.cs

     public class UIWidgetsPanelEditor : RawImageEditor {
         
         public override void OnInspectorGUI() {
-            base.OnInspectorGUI();
-            var pixelRatioProperty = serializedObject.FindProperty("devicePixelRatioOverride");
-            var antiAliasingProperty = serializedObject.FindProperty("hardwareAntiAliasing");
+            base.OnInspectorGUI(); 
+            //var pixelRatioProperty = serializedObject.FindProperty("devicePixelRatioOverride");
+            //var antiAliasingProperty = serializedObject.FindProperty("hardwareAntiAliasing");
-            EditorGUILayout.PropertyField(pixelRatioProperty);
-            EditorGUILayout.PropertyField(antiAliasingProperty);
+            //EditorGUILayout.PropertyField(pixelRatioProperty);
+            //EditorGUILayout.PropertyField(antiAliasingProperty);
             UIWidgetsPanel panel = (UIWidgetsPanel)target;
             
             serializedObject.ApplyModifiedProperties(); 

com.unity.uiwidgets/Runtime/engine2/UIWidgetsPanelWrapper.cs

 using UnityEngine;
 
 namespace Unity.UIWidgets.editor2 {
-
-    public delegate void UIWidgetsMainFunction();
-    
     public class UIWidgetsPanelWrapper {
         
         RenderTexture _renderTexture;