Merge "Removed useless testapi annotation"

import android.annotation.Nullable;

import android.annotation.SystemApi;

import android.annotation.TestApi;

import android.compat.annotation.UnsupportedAppUsage;

import android.os.Build;

import android.os.Parcel;

     *

     * @hide

     */

    @TestApi

    public int getClassOfDevice() {

        return mClass;

    }