Remove obsoleted code: DividerSwitchPreference

Settings don't show divider in material design. The DividerSwitchPreference is not used now.

Bug: 197695932
Test: make RunSettingsRoboTest
Change-Id: I3fef9401b5c4a3e7d4ca6fc966f3e60c57558cdd

src/com/android/settings/accessibility/DividerSwitchPreference.java

@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2020 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.
- */
-
-package com.android.settings.accessibility;
-
-import android.content.Context;
-import android.view.View;
-
-import androidx.preference.PreferenceViewHolder;
-import androidx.preference.SwitchPreference;
-
-/**
- * A switch preference that has a divider below and above. Used for Accessibility Settings use
- * service.
- */
-public final class DividerSwitchPreference extends SwitchPreference {
-
-    private Boolean mDividerAllowedAbove;
-    private Boolean mDividerAllowBelow;
-    private int mSwitchVisibility;
-
-    public DividerSwitchPreference(Context context) {
-        super(context);
-        mDividerAllowedAbove = true;
-        mDividerAllowBelow = true;
-        mSwitchVisibility = View.VISIBLE;
-    }
-
-    @Override
-    public void onBindViewHolder(PreferenceViewHolder holder) {
-        super.onBindViewHolder(holder);
-        holder.setDividerAllowedAbove(mDividerAllowedAbove);
-        holder.setDividerAllowedBelow(mDividerAllowBelow);
-
-        final View switchView = holder.itemView.findViewById(android.R.id.widget_frame);
-        if (switchView != null) {
-            switchView.setVisibility(mSwitchVisibility);
-        }
-    }
-
-    /**
-     * Sets divider whether to show in preference above.
-     *
-     * @param allowed true will be drawn on above this item
-     */
-    public void setDividerAllowedAbove(boolean allowed) {
-        if (mDividerAllowedAbove != allowed) {
-            mDividerAllowedAbove = allowed;
-            notifyChanged();
-        }
-    }
-
-    /**
-     * Sets divider whether to show in preference below.
-     *
-     * @param allowed true will be drawn on below this item
-     */
-    public void setDividerAllowedBelow(boolean allowed) {
-        if (mDividerAllowedAbove != allowed) {
-            mDividerAllowBelow = allowed;
-            notifyChanged();
-        }
-    }
-
-    /**
-     * Sets the visibility state of Settings view.
-     *
-     * @param visibility one of {@link View#VISIBLE}, {@link View#INVISIBLE}, or {@link View#GONE}.
-     */
-    public void setSwitchVisibility(@View.Visibility int visibility) {
-        if (mSwitchVisibility != visibility) {
-            mSwitchVisibility = visibility;
-            notifyChanged();
-        }
-    }
-}