Remove no-op handlePerferenceTreeClick from PrefControllers

Bug: 33429853
Test: RunSettingsRoboTests
Change-Id: I5633953e3d7b07f9006e541b96a24a2a769e2686

src/com/android/settings/network/MobileNetworkPreferenceController.java

@@ -39,11 +39,6 @@ public class MobileNetworkPreferenceController extends PreferenceController {
         mIsSecondaryUser = !mUserManager.isAdminUser();
     }
 
-    @Override
-    public boolean handlePreferenceTreeClick(Preference preference) {
-        return false;
-    }
-
     @Override
     public boolean isAvailable() {
         return !mIsSecondaryUser

src/com/android/settings/network/NetworkResetPreferenceController.java

@@ -31,11 +31,6 @@ public class NetworkResetPreferenceController extends PreferenceController {
         super(context);
     }
 
-    @Override
-    public boolean handlePreferenceTreeClick(Preference preference) {
-        return false;
-    }
-
     @Override
     public boolean isAvailable() {
         return !RestrictedLockUtils.hasBaseUserRestriction(mContext,

src/com/android/settings/network/ProxyPreferenceController.java

@@ -30,11 +30,6 @@ public class ProxyPreferenceController extends PreferenceController {
         super(context);
     }
 
-    @Override
-    public boolean handlePreferenceTreeClick(Preference preference) {
-        return false;
-    }
-
     @Override
     public boolean isAvailable() {
         // proxy UI disabled until we have better app support

src/com/android/settings/network/TetherPreferenceController.java

@@ -48,11 +48,6 @@ public class TetherPreferenceController extends PreferenceController {
         mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
     }
 
-    @Override
-    public boolean handlePreferenceTreeClick(Preference preference) {
-        return false;
-    }
-
     @Override
     public void displayPreference(PreferenceScreen screen) {
         super.displayPreference(screen);

src/com/android/settings/network/VpnPreferenceController.java

@@ -40,11 +40,6 @@ public class VpnPreferenceController extends PreferenceController {
         mIsSecondaryUser = !UserManager.get(context).isAdminUser();
     }
 
-    @Override
-    public boolean handlePreferenceTreeClick(Preference preference) {
-        return false;
-    }
-
     @Override
     public void displayPreference(PreferenceScreen screen) {
         super.displayPreference(screen);

src/com/android/settings/network/WifiCallingPreferenceController.java

@@ -34,11 +34,6 @@ public class WifiCallingPreferenceController extends PreferenceController {
         mTm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
     }
 
-    @Override
-    public boolean handlePreferenceTreeClick(Preference preference) {
-        return false;
-    }
-
     @Override
     public void displayPreference(PreferenceScreen screen) {
         super.displayPreference(screen);