android 8.1 移除hifi_sensor feature

位置：android/frameworks/base/core/java/com/android/server/SystemConfig.java

在 removeUnsupportFeature方法里加

mUnavailableFeatures.add(PackageManager.FEATURE_HIFI_SENSORS);

private void removeUnsupportFeature()
        {
            //remove hifi_sensor feature 
            mUnavailableFeatures.add(PackageManager.FEATURE_HIFI_SENSORS);
    　　　}

用命令 adb shell pm list features测试会发现没有了hifi_sensor．