Upower local libusb revert

That workarounds the coldplug problem

$ sudo ./libexec/upowerd -v
TI:18:38:27     Starting upowerd version 0.9.19
...
TI:18:38:27     registering subsystem : usb
TI:18:38:27     failed to coldplug /sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/usb1
<upowerd EXITS>