overlay: Remove config_wifi_wakeup_available

* It doesn't exist anymore.

Change-Id: I6f855f097febbc986dd8d94d862f154842641d1b

overlay/common/frameworks/base/core/res/res/values/config.xml

@@ -76,12 +76,6 @@
    <!-- Set icon mask to circle -->
    <string name="config_icon_mask" translatable="false">"M50 0A50 50,0,1,1,50 100A50 50,0,1,1,50 0"</string>
 
-    <!-- Controls the WiFi wakeup feature.
-          0 = Not available.
-          1 = Available.
-    -->
-    <integer translatable="false" name="config_wifi_wakeup_available">1</integer>
-
     <!-- Whether action menu items should be displayed in ALLCAPS or not.
          Defaults to true. If this is not appropriate for specific locales
          it should be disabled in that locale's resources. -->