UsbDkUtil: Drop old compiler bug workroungs
UsbDkUtil: Drop old compiler bug workroungs

In-class initization of structures was fixed in
Visual Studio 2013 Update 4 compiler, workarounds
are not relevant anymore.

Signed-off-by: Dmitry Fleytman <f50f56ffad4b379c2a89812e98b14900ef87e9ea@redhat.com>

freedesktop-unofficial-mirror/spice__win32__usbdk,daynix/UsbDk,SPICE/win32-usbdk,SPICE/win32-usbdk,freedesktop-unofficial-mirror/spice__win32__usbdk,freedesktop-unofficial-mirror/spice__win32__usbdk,daynix/UsbDk