We use other osmo_libusb_* functions later in the code, so it is best
to initialize the library via libosmousb, and not directly.
Change-Id: I2fd981935e1420e529f5dd8a98edd347c317284c
we shouldn't use a local copy of the device id list, which is already
outdated now that OCTSIMTEST support has been added to libosmo-st2
Change-Id: I2231006b94c33fe3b28ce37b0d54c67206751058
the code we used to have in libusb_util.c has been migrated to
libosmousb, a new part of libosmocore.git. Let's remove our historic
copy and use the new shared library instead.
Change-Id: Ib588c08f873c4da8f3a02815ee2767674a6a5061