Remove ChromePrerenderService, keeping only its skeleton behind.

chrome/android/java/res/layout/prerender_test_main.xml

Index: chrome/android/java/res/layout/prerender_test_main.xml
diff --git a/chrome/android/java/res/layout/prerender_test_main.xml b/chrome/android/java/res/layout/prerender_test_main.xml
deleted file mode 100644
index 9ece1a8584d571c77c8f01610d79e57adbd723b8..0000000000000000000000000000000000000000
--- a/chrome/android/java/res/layout/prerender_test_main.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright 2015 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. -->
-
-<!--suppress HardcodedText -->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:layout_margin="30dp"
-    android:orientation="vertical"
-    android:gravity="center_horizontal">
-    <TextView
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Url to prerender and load"
-        android:layout_marginTop="30dp"
-        android:layout_gravity="start|center_vertical"/>
-    <EditText
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:inputType="textUri"
-        android:id="@+id/url_to_load"/>
-    <Button
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Preload url"
-        android:id="@+id/preload_button"
-        android:layout_margin="20dp"/>
-    <Button
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Load url"
-        android:id="@+id/load_button"
-        android:layout_margin="20dp"/>
-</LinearLayout>