fix sdk build breakage; remove invalid @note tag

 * are then determined internally and the animation will call these functions as necessary to

 * animate the property.

 *

 * @note Instances of this class hold only a {@link WeakReference} to the target object.

 * <p class="note"><b>Note:</b> Instances of this class hold only a {@link WeakReference}

 * to the target object.</p>

 * @see #setPropertyName(String)

 *

 */