Remove Settings preference_widget_primary_switch

File content same as SettingsLib's preference_widget_primary_switch

Bug: 285231003
Test: m Settings
Change-Id: I4b9f92435ffb5c253241e294c4680025fe0447fc

res/layout/preference_widget_primary_switch.xml

@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  Copyright (C) 2017 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.
-  -->
-
-<Switch
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/switchWidget"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:minWidth="@dimen/two_target_min_width"
-    android:gravity="center_vertical"
-    android:clickable="false" />