diff --git a/src/com/android/settings/language/LanguageSettings.java b/src/com/android/settings/language/LanguageSettings.java
index 5da0f2f769a..82533115052 100644
--- a/src/com/android/settings/language/LanguageSettings.java
+++ b/src/com/android/settings/language/LanguageSettings.java
@@ -39,6 +39,8 @@ import java.util.List;
 public class LanguageSettings extends DashboardFragment {
 
     private static final String KEY_SPEECH_CATEGORY = "speech_category";
+    private static final String KEY_ON_DEVICE_RECOGNITION = "on_device_recognition_settings";
+    private static final String KEY_TEXT_TO_SPEECH = "tts_settings_summary";
 
     private static final String TAG = "LanguageSettings";
 
@@ -81,9 +83,9 @@ public class LanguageSettings extends DashboardFragment {
         final DefaultVoiceInputPreferenceController defaultVoiceInputPreferenceController =
                 new DefaultVoiceInputPreferenceController(context, lifecycle);
         final TtsPreferenceController ttsPreferenceController =
-                new TtsPreferenceController(context);
+                new TtsPreferenceController(context, KEY_TEXT_TO_SPEECH);
         final OnDeviceRecognitionPreferenceController onDeviceRecognitionPreferenceController =
-                new OnDeviceRecognitionPreferenceController(context);
+                new OnDeviceRecognitionPreferenceController(context, KEY_ON_DEVICE_RECOGNITION);
 
         controllers.add(defaultVoiceInputPreferenceController);
         controllers.add(ttsPreferenceController);
@@ -103,6 +105,7 @@ public class LanguageSettings extends DashboardFragment {
 
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider(R.xml.language_settings) {
+                @Override
                 public List<AbstractPreferenceController> createPreferenceControllers(
                         Context context) {
                     return buildPreferenceControllers(context, null);
diff --git a/src/com/android/settings/language/OnDeviceRecognitionPreferenceController.java b/src/com/android/settings/language/OnDeviceRecognitionPreferenceController.java
index 35b42187c8f..01f37b1f933 100644
--- a/src/com/android/settings/language/OnDeviceRecognitionPreferenceController.java
+++ b/src/com/android/settings/language/OnDeviceRecognitionPreferenceController.java
@@ -33,16 +33,10 @@ import java.util.Optional;
 /** Controller of the On-device recognition preference. */
 public class OnDeviceRecognitionPreferenceController extends BasePreferenceController {
 
-    private static final String KEY_ON_DEVICE_RECOGNITION = "on_device_recognition_settings";
-
     private static final String TAG = "OnDeviceRecognitionPreferenceController";
 
     private Optional<Intent> mIntent;
 
-    public OnDeviceRecognitionPreferenceController(Context context) {
-        this(context, KEY_ON_DEVICE_RECOGNITION);
-    }
-
     public OnDeviceRecognitionPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
     }
@@ -57,10 +51,6 @@ public class OnDeviceRecognitionPreferenceController extends BasePreferenceContr
                 : CONDITIONALLY_UNAVAILABLE;
     }
 
-    public String getPreferenceKey() {
-        return KEY_ON_DEVICE_RECOGNITION;
-    }
-
     @Override
     public void updateState(Preference preference) {
         super.updateState(preference);
@@ -140,4 +130,4 @@ public class OnDeviceRecognitionPreferenceController extends BasePreferenceContr
 
         return new Intent(Intent.ACTION_MAIN).setComponent(chosenRecognizer.mSettings);
     }
-}
+}
\ No newline at end of file
diff --git a/src/com/android/settings/language/TtsPreferenceController.java b/src/com/android/settings/language/TtsPreferenceController.java
index b38920606cf..285f69bab85 100644
--- a/src/com/android/settings/language/TtsPreferenceController.java
+++ b/src/com/android/settings/language/TtsPreferenceController.java
@@ -26,15 +26,9 @@ import com.android.settings.core.BasePreferenceController;
 
 public class TtsPreferenceController extends BasePreferenceController {
 
-    private static final String KEY_TEXT_TO_SPEECH = "tts_settings_summary";
-
     @VisibleForTesting
     TtsEngines mTtsEngines;
 
-    public TtsPreferenceController(Context context) {
-        this(context, KEY_TEXT_TO_SPEECH);
-    }
-
     public TtsPreferenceController(Context context, String key) {
         super(context, key);
         mTtsEngines = new TtsEngines(context);
@@ -46,8 +40,4 @@ public class TtsPreferenceController extends BasePreferenceController {
                 mContext.getResources().getBoolean(R.bool.config_show_tts_settings_summary)
                 ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
     }
-
-    public String getPreferenceKey() {
-        return KEY_TEXT_TO_SPEECH;
-    }
-}
+}
\ No newline at end of file