diff --git a/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java b/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java
index c115bbb..c46809a 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/DeviceFlag.java
@@ -17,21 +17,17 @@
 package com.android.launcher3.uioverrides;
 
 import android.annotation.TargetApi;
-import android.content.Context;
 import android.os.Build;
 import android.provider.DeviceConfig;
 
 import com.android.launcher3.config.FeatureFlags.DebugFlag;
 
-import java.util.ArrayList;
-
 @TargetApi(Build.VERSION_CODES.P)
 public class DeviceFlag extends DebugFlag {
 
     public static final String NAMESPACE_LAUNCHER = "launcher";
 
     private final boolean mDefaultValueInCode;
-    ArrayList<Runnable> mListeners;
 
     public DeviceFlag(String key, boolean defaultValue, String description) {
         super(key, getDeviceValue(key, defaultValue), description);
@@ -44,53 +40,11 @@
     }
 
     @Override
-    public void initialize(Context context) {
-        super.initialize(context);
-        if (mListeners == null) {
-            mListeners = new ArrayList<>();
-            registerDeviceConfigChangedListener(context);
-        }
-    }
-
-    @Override
-    public void addChangeListener(Context context, Runnable r) {
-        if (mListeners == null) {
-            initialize(context);
-        }
-        mListeners.add(r);
-    }
-
-    @Override
-    public void removeChangeListener(Runnable r) {
-        if (mListeners == null) {
-            return;
-        }
-        mListeners.remove(r);
-    }
-
-    @Override
     public boolean get() {
         // Override this method in order to let Robolectric ShadowDeviceFlag to stub it.
         return super.get();
     }
 
-    private void registerDeviceConfigChangedListener(Context context) {
-        DeviceConfig.addOnPropertiesChangedListener(
-                NAMESPACE_LAUNCHER,
-                context.getMainExecutor(),
-                properties -> {
-                    if (!NAMESPACE_LAUNCHER.equals(properties.getNamespace())
-                            || !properties.getKeyset().contains(key)) {
-                        return;
-                    }
-                    defaultValue = getDeviceValue(key, mDefaultValueInCode);
-                    initialize(context);
-                    for (Runnable r: mListeners) {
-                        r.run();
-                    }
-                });
-    }
-
     protected static boolean getDeviceValue(String key, boolean defaultValue) {
         return DeviceConfig.getBoolean(NAMESPACE_LAUNCHER, key, defaultValue);
     }
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 1fe50f8..1779ddb 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -295,7 +295,7 @@
     public static class BooleanFlag {
 
         public final String key;
-        public boolean defaultValue;
+        public final boolean defaultValue;
 
         public BooleanFlag(String key, boolean defaultValue) {
             this.key = key;
@@ -314,16 +314,12 @@
         protected StringBuilder appendProps(StringBuilder src) {
             return src.append(key).append(", defaultValue=").append(defaultValue);
         }
-
-        public void addChangeListener(Context context, Runnable r) { }
-
-        public void removeChangeListener(Runnable r) {}
     }
 
     public static class DebugFlag extends BooleanFlag {
 
         public final String description;
-        private boolean mCurrentValue;
+        protected boolean mCurrentValue;
 
         public DebugFlag(String key, boolean defaultValue, String description) {
             super(key, defaultValue);