Remove all blimp client code.

blimp/client/core/settings/android/java/src/org/chromium/blimp/core/settings/BlimpPreferencesDelegate.java

Index: blimp/client/core/settings/android/java/src/org/chromium/blimp/core/settings/BlimpPreferencesDelegate.java
diff --git a/blimp/client/core/settings/android/java/src/org/chromium/blimp/core/settings/BlimpPreferencesDelegate.java b/blimp/client/core/settings/android/java/src/org/chromium/blimp/core/settings/BlimpPreferencesDelegate.java
deleted file mode 100644
index d7801094de58ef8a7e31cb8e9885f07afb257057..0000000000000000000000000000000000000000
--- a/blimp/client/core/settings/android/java/src/org/chromium/blimp/core/settings/BlimpPreferencesDelegate.java
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.blimp.core.settings;
-
-import org.chromium.blimp_public.BlimpClientContextDelegate;
-
-/**
- * BlimpPreferencesDelegate provides functionalities needed by preferences UX.
- */
-public interface BlimpPreferencesDelegate {
-    /**
-     * @return The {@link BlimpClientContextDelegate} that contains embedder functionalities.
-     */
-    BlimpClientContextDelegate getDelegate();
-
-    /**
-     * Initialize setting page.
-     * Set the delegate in native. We don't directly pass the delegate to native
-     * BlimpSettingsAndroid because jni pointer can't be cast to parent class via reinterpret_cast.
-     */
-    void initSettingsPage(AboutBlimpPreferences preferences);
-
-    /**
-     * Start authentication flow and connection to engine.
-     */
-    void connect();
-}