Remove all blimp client code.

blimp/client/core/settings/android/blimp_settings_android.h

-// 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.
-
-#ifndef BLIMP_CLIENT_CORE_SETTINGS_ANDROID_BLIMP_SETTINGS_ANDROID_H_
-#define BLIMP_CLIENT_CORE_SETTINGS_ANDROID_BLIMP_SETTINGS_ANDROID_H_
-
-#include <memory>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/macros.h"
-#include "blimp/client/core/session/identity_source.h"
-#include "blimp/client/core/session/network_event_observer.h"
-
-namespace blimp {
-namespace client {
-
-class BlimpSettingsDelegate;
-
-// JNI bridge between AboutBlimpPreferences.java and native code.
-class BlimpSettingsAndroid : public IdentityProvider::Observer,
-                             public NetworkEventObserver {
- public:
-  static bool RegisterJni(JNIEnv* env);
-  static BlimpSettingsAndroid* FromJavaObject(
-      JNIEnv* env,
-      const base::android::JavaRef<jobject>& jobj);
-  BlimpSettingsAndroid(JNIEnv* env,
-                       const base::android::JavaRef<jobject>& jobj);
-  ~BlimpSettingsAndroid() override;
-
-  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& jobj);
-
-  void SetDelegate(BlimpSettingsDelegate* delegate);
-
- private:
-  // Notify Java layer for user sign in state change.
-  void OnSignedOut() const;
-  void OnSignedIn() const;
-
-  // Update engine info in Java, this can be either connection end point or
-  // engine disconnection reason.
-  void UpdateEngineInfo() const;
-
-  // IdentityProvider::Observer implementation.
-  void OnActiveAccountLogout() override;
-  void OnActiveAccountLogin() override;
-
-  // NetworkEventObserver implementation.
-  void OnConnected() override;
-  void OnDisconnected(int result) override;
-
-  base::android::ScopedJavaGlobalRef<jobject> java_obj_;
-
-  // Delegate that provides functions needed by settings.
-  BlimpSettingsDelegate* delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpSettingsAndroid);
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  //  BLIMP_CLIENT_CORE_SETTINGS_ANDROID_BLIMP_SETTINGS_ANDROID_H_