[temp] revert flash notifications until device tree support is properly implemented

some devices dont' have sysfs.  others have incorrect perms set on the path. will reimplement
when it doesn't rely on legacy torch device tree stuff

Squashed commit of the following:

commit 506c60646b74450e908592983813833e7cbfa6e5
Author: Dave Kessler <activethrasher00@gmail.com>
Date:   Tue Dec 30 20:26:59 2014 -0500

    Revert "flash notifications [2/2]"

    This reverts commit c89f203493fea70be172b7d413c29d680e8ad969.

    Conflicts:
    	res/values/vanir_strings.xml
    	src/com/android/settings/vanir/widgets/VanirPreferenceSwitch.java

    Change-Id: I057f409bd23693a524bbbf9f406df5916d03cc5b

commit 5da1aba93d0e2dfcd34e52997b4b9b6c95dec470
Author: Dave Kessler <activethrasher00@gmail.com>
Date:   Tue Dec 30 20:26:22 2014 -0500

    Revert "Flash Notifications: update switch state in onResume for fragment reentry"

    This reverts commit 3d30a43151b37222da50bd0c117edf03ff6d2bf9.

Change-Id: I883d38c6f2f5b2fef24ba0b10a0ec0d66b5e3886