Remove plugin reference in QS

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.FrameLayout;

import android.widget.HorizontalScrollView;

import android.widget.LinearLayout;

import com.android.systemui.qs.external.CustomTile;

import com.android.systemui.settings.BrightnessController;

import com.android.systemui.settings.ToggleSliderView;

import com.android.systemui.shared.plugins.PluginManager;

import com.android.systemui.statusbar.policy.BrightnessMirrorController;

import com.android.systemui.statusbar.policy.BrightnessMirrorController.BrightnessMirrorListener;

import com.android.systemui.tuner.TunerService;

    private BrightnessMirrorController mBrightnessMirrorController;

    private View mDivider;

    private FrameLayout mPluginFrame;

    private final PluginManager mPluginManager;

    private final LocalMediaManager.DeviceCallback mDeviceCallback =

            new LocalMediaManager.DeviceCallback() {

        @Override

    }

    public QSPanel(Context context, AttributeSet attrs, DumpController dumpController) {

        this(context, attrs, dumpController, null, Dependency.get(BroadcastDispatcher.class));

        this(context, attrs, dumpController, Dependency.get(BroadcastDispatcher.class));

    }

    @Inject

    public QSPanel(@Named(VIEW_CONTEXT) Context context, AttributeSet attrs,

            DumpController dumpController, PluginManager pluginManager,

            BroadcastDispatcher broadcastDispatcher) {

            DumpController dumpController, BroadcastDispatcher broadcastDispatcher) {

        super(context, attrs);

        mContext = context;

        mBrightnessController = new BrightnessController(getContext(),

                findViewById(R.id.brightness_slider), broadcastDispatcher);

        mDumpController = dumpController;

        mPluginManager = pluginManager;

    }

    @Override