bedrock-samples/resource_pack/render_controllers/skeleton_horse_v3.render_controllers.json

{
  "format_version": "1.8.0",
  "render_controllers": {
    "controller.render.skeleton_horse.v3": {
      "part_visibility": [
        { "Saddle": false },
        { "Bit*": false },
        { "Bridle": false },
        { "Reins*" : false },
        { "Bag*" : false },
        { "MuleEar*" : false}
      ],
      "geometry": "Geometry.default",
      "materials": [
        { "*": "Material.default" }
      ],
      "textures": [ "Texture.skeleton", "Texture.markings_none", "Texture.armor_none" ]
    }
  }
}