Disable animation from AssetImporter

DisableAnimations.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

public class DisableAnimations : AssetPostprocessor
{
    void OnPreprocessModel()
    {
        var modelImporter = assetImporter as ModelImporter;
        modelImporter.importAnimation = false; 
        modelImporter.generateAnimations = ModelImporterGenerateAnimations.None;
    }

    void OnPostprocessModel(GameObject g)
    {
        var c = g.GetComponent<Animator>();
        if ( c != null )
        {
            GameObject.DestroyImmediate(c);
        }
    }
    
}