Remove Battery Status API support code from Blink

Source/modules/battery/NavigatorBattery.idl

Index: Source/modules/battery/NavigatorBattery.idl
diff --git a/Source/modules/battery/NavigatorBattery.idl b/Source/modules/battery/NavigatorBattery.idl
deleted file mode 100644
index d58c82aab2cda47729ad1519ec79b683bebd097e..0000000000000000000000000000000000000000
--- a/Source/modules/battery/NavigatorBattery.idl
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- *  Copyright (C) 2012 Samsung Electronics
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Library General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Library General Public License for more details.
- *
- *  You should have received a copy of the GNU Library General Public License
- *  along with this library; see the file COPYING.LIB.  If not, write to
- *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- *  Boston, MA 02110-1301, USA.
- */
-
-[
-    Conditional=BATTERY_STATUS
-] partial interface Navigator {
-    readonly attribute BatteryManager webkitBattery;
-};
-