Revert "OmniLib: Add Global Settings preference switch"

This reverts commit d391443a2d01d166bb1a4f773ad2afd0a9201d59.

Change-Id: I161f83f45151bf7a2902847b06e2efe024224a52
diff --git a/src/org/omnirom/omnilib/preference/SettingGlobalSwitchPreference.java b/src/org/omnirom/omnilib/preference/SettingGlobalSwitchPreference.java
deleted file mode 100644
index 9ee4ce3..0000000
--- a/src/org/omnirom/omnilib/preference/SettingGlobalSwitchPreference.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2013 The CyanogenMod 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 org.omnirom.omnilib.preference;
-
-import android.content.Context;
-import android.provider.Settings;
-import android.support.v14.preference.SwitchPreference;
-import android.util.AttributeSet;
-
-public class SettingGlobalSwitchPreference extends SwitchPreference {
-    public SettingGlobalSwitchPreference(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-    }
-
-    public SettingGlobalSwitchPreference(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    public SettingGlobalSwitchPreference(Context context) {
-        super(context, null);
-    }
-
-    @Override
-    protected boolean persistBoolean(boolean value) {
-        if (shouldPersist()) {
-            if (value == getPersistedBoolean(!value)) {
-                // It's already there, so the same as persisting
-                return true;
-            }
-            Settings.Global.putInt(getContext().getContentResolver(), getKey(), value ? 1 : 0);
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    protected boolean getPersistedBoolean(boolean defaultReturnValue) {
-        if (!shouldPersist()) {
-            return defaultReturnValue;
-        }
-        return Settings.Global.getInt(getContext().getContentResolver(),
-                getKey(), defaultReturnValue ? 1 : 0) != 0;
-    }
-
-    @Override
-    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
-        setChecked(Settings.Global.getString(getContext().getContentResolver(), getKey()) != null ? getPersistedBoolean(isChecked())
-                : (Boolean) defaultValue);
-    }
-}