Change Nav bar style to use system nav (new style for Nexus N+)

Bug: 27612740

Change-Id: I309cf8252285130a0e1d2c03ca664706e73cce16

res/layout/accessibility_settings_for_suw.xml

@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-    Copyright (C) 2016 The Android Open Source Project
-
-    Licensed under the Apache License, Version 2.0 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
-
-         http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
--->
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <FrameLayout
-        android:id="@+id/suw_main_content"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1" />
-
-    <com.android.setupwizardlib.view.NavigationBar
-        android:id="@+id/suw_navigation_bar"
-        style="@style/SuwNavBarTheme"
-        android:layout_width="match_parent"
-        android:layout_height="@dimen/suw_navbar_height"
-        android:accessibilityTraversalAfter="@id/suw_main_content" />
-
-</LinearLayout>