diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 6c1bf8e9b8ae7..88e7ffc18ec2e 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -9680,13 +9680,6 @@ public final class Settings {
         @Readable
         public static final String QS_AUTO_ADDED_TILES = "qs_auto_tiles";
 
-        /**
-         * Whether the Lockdown button should be shown in the power menu.
-         * @hide
-         */
-        @Readable
-        public static final String LOCKDOWN_IN_POWER_MENU = "lockdown_in_power_menu";
-
         /**
          * Backup manager behavioral parameters.
          * This is encoded as a key=value list, separated by commas. Ex:
diff --git a/packages/SettingsProvider/src/android/provider/settings/backup/SecureSettings.java b/packages/SettingsProvider/src/android/provider/settings/backup/SecureSettings.java
index ae6165b80e749..60226084c70de 100644
--- a/packages/SettingsProvider/src/android/provider/settings/backup/SecureSettings.java
+++ b/packages/SettingsProvider/src/android/provider/settings/backup/SecureSettings.java
@@ -123,7 +123,6 @@ public class SecureSettings {
         Settings.Secure.SCREENSAVER_COMPONENTS,
         Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK,
         Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP,
-        Settings.Secure.LOCKDOWN_IN_POWER_MENU,
         Settings.Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
         Settings.Secure.VOLUME_HUSH_GESTURE,
         Settings.Secure.MANUAL_RINGER_TOGGLE_COUNT,
diff --git a/packages/SettingsProvider/src/android/provider/settings/validators/SecureSettingsValidators.java b/packages/SettingsProvider/src/android/provider/settings/validators/SecureSettingsValidators.java
index e09d4201e83e6..6d7fb027ee994 100644
--- a/packages/SettingsProvider/src/android/provider/settings/validators/SecureSettingsValidators.java
+++ b/packages/SettingsProvider/src/android/provider/settings/validators/SecureSettingsValidators.java
@@ -177,7 +177,6 @@ public class SecureSettingsValidators {
         VALIDATORS.put(Secure.SCREENSAVER_COMPONENTS, COMMA_SEPARATED_COMPONENT_LIST_VALIDATOR);
         VALIDATORS.put(Secure.SCREENSAVER_ACTIVATE_ON_DOCK, BOOLEAN_VALIDATOR);
         VALIDATORS.put(Secure.SCREENSAVER_ACTIVATE_ON_SLEEP, BOOLEAN_VALIDATOR);
-        VALIDATORS.put(Secure.LOCKDOWN_IN_POWER_MENU, BOOLEAN_VALIDATOR);
         VALIDATORS.put(Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION, BOOLEAN_VALIDATOR);
         VALIDATORS.put(Secure.VOLUME_HUSH_GESTURE, NON_NEGATIVE_INTEGER_VALIDATOR);
         VALIDATORS.put(
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
index 86b3bab181b74..579c3a59d3c51 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
@@ -2220,9 +2220,6 @@ class SettingsProtoDumpUtil {
         dumpSetting(s, p,
                 Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
                 SecureSettingsProto.LOCK_TO_APP_EXIT_LOCKED);
-        dumpSetting(s, p,
-                Settings.Secure.LOCKDOWN_IN_POWER_MENU,
-                SecureSettingsProto.LOCKDOWN_IN_POWER_MENU);
         dumpSetting(s, p,
                 Settings.Secure.LONG_PRESS_TIMEOUT,
                 SecureSettingsProto.LONG_PRESS_TIMEOUT);
diff --git a/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java b/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java
index 001c9f321430c..b4e0e2f947a64 100644
--- a/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java
+++ b/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java
@@ -667,11 +667,6 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
 
         int userId = user.id;
 
-        // No lockdown option if it's not turned on in Settings
-        if (mSecureSettings.getIntForUser(Settings.Secure.LOCKDOWN_IN_POWER_MENU, 0, userId) == 0) {
-            return false;
-        }
-
         // Lockdown is meaningless without a place to go.
         if (!mKeyguardStateController.isMethodSecure()) {
             return false;