Revert "Dim icons when recent apps category is disabled"

This change makes all the icons in the system dimmed, not only on Location Settings page. I haven't managed to find a simple fix to that problem. I think we should abandon this feature, and revert this CL.

This reverts commit ebcd196a0b.

Change-Id: If39f2892c82643b936d2d9ff7b1d1c027018f3f6

src/com/android/settings/location/DimmableIconPreference.java

@@ -1,52 +0,0 @@
-/*
- * Copyright (C) 2013 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.location;
-
-import android.content.Context;
-import android.graphics.drawable.Drawable;
-import android.preference.Preference;
-import android.util.AttributeSet;
-
-/**
- * A preference item that can dim the icon when it's disabled.
- */
-public class DimmableIconPreference extends Preference {
-    private static final int ICON_ALPHA_ENABLED = 255;
-    private static final int ICON_ALPHA_DISABLED = 102;
-
-    public DimmableIconPreference(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-    }
-
-    public DimmableIconPreference(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    public DimmableIconPreference(Context context) {
-        super(context);
-    }
-
-    @Override
-    public void onParentChanged(Preference parent, boolean disableChild) {
-        Drawable icon = getIcon();
-        if (icon != null) {
-            icon.setAlpha(disableChild ? ICON_ALPHA_DISABLED : ICON_ALPHA_ENABLED);
-            setIcon(icon);
-        }
-        super.onParentChanged(parent, disableChild);
-    }
-}

src/com/android/settings/location/RecentLocationApps.java

@@ -96,7 +96,7 @@ public class RecentLocationApps {
             CharSequence label,
             boolean isHighBattery,
             Preference.OnPreferenceClickListener listener) {
-        Preference pref = new DimmableIconPreference(mActivity);
+        Preference pref = new Preference(mActivity);
         pref.setIcon(icon);
         pref.setTitle(label);
         if (isHighBattery) {