The reason for assuming a device is off by default is that this
function's purpose is to check whether there are wireless devices
powered on *that can be turned off*.  If the device can't be powered off
because there's no interface for doing so, then reporting it as being
"on" gives the wrong results and will prevent acpi-support from ever
powering any /other/ wireless devices in the system back on.

This is a corner case; nevertheless it's one that the previous code
handles correctly and the new code does not.

The code should also probably not try to check the status of hardware
kill switches, since attempting to honor them would also break the
"toggle" functionality here in acpi-support - after all, you can't
toggle a hardware kill switch from software. :)

-- 
change isAnyWirelessPoweredOn() accordingly to the removal of the old status 
kernel interface
https://bugs.launchpad.net/bugs/180598
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