Update Addons.js (#29493)

leftovers after removing `PackedPhongMaterial ` #29382

Author: eugenehp

examples/jsm/Addons.js

@@ -271,7 +271,6 @@ export * as CameraUtils from './utils/CameraUtils.js';
 export * as GeometryCompressionUtils from './utils/GeometryCompressionUtils.js';
 export * as GeometryUtils from './utils/GeometryUtils.js';
 export * from './utils/LDrawUtils.js';
-export * from './utils/PackedPhongMaterial.js';
 export * as SceneUtils from './utils/SceneUtils.js';
 export * from './utils/ShadowMapViewer.js';
 export * as SkeletonUtils from './utils/SkeletonUtils.js';