Remove all blimp client code.

blimp/client/core/resources/android/java/res/xml/blimp_preferences.xml

Index: blimp/client/core/resources/android/java/res/xml/blimp_preferences.xml
diff --git a/blimp/client/core/resources/android/java/res/xml/blimp_preferences.xml b/blimp/client/core/resources/android/java/res/xml/blimp_preferences.xml
deleted file mode 100644
index a399666c8c35a5711b16949ce391981cf847f74a..0000000000000000000000000000000000000000
--- a/blimp/client/core/resources/android/java/res/xml/blimp_preferences.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- 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. -->
-
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-    android:title="@string/blimp_about_blimp_preferences">
-  <SwitchPreference
-        android:key="blimp_switch"
-        android:title="@string/blimp_switch" />
-    <Preference
-        android:key="blimp_engine_info"
-        android:title="@string/blimp_engine_info" />
-    <Preference
-        android:key="blimp_engine_version"
-        android:title="@string/blimp_engine_version" />
-    <ListPreference
-        android:key="blimp_assigner_url"
-        android:title="@string/blimp_assigner_url"
-        android:entries="@array/blimp_assigner_envs"
-        android:entryValues="@array/blimp_assigner_urls" />
-</PreferenceScreen>