changed uint surrogate field uss display attribute to none

com.unity.perception/Editor/Randomization/PropertyDrawers/UIntDrawer.cs

             // Create a surrogate integer field to detect and pass along external change events (non UI event) on the underlying serialized property.
             var surrogateField = new IntegerField();
             field.Add(surrogateField);
-            surrogateField.style.display = DisplayStyle.Flex;
+            surrogateField.style.display = DisplayStyle.None;
             surrogateField.bindingPath = property.propertyPath;
             surrogateField.RegisterValueChangedCallback(evt =>
             {