github/workflow: disable libusb static link for windows build

github/workflow: disable libusb static link for windows build

Current github build for windows is using dynamic libraries,
but libftdi is requiring libusb static libraries.

As a quick solution, just get rid of libftdi till it can be linked without
static libusb.

Change-Id: I9c7cb0b8853459ca48589674498403e255ade5cc
Reported-by: Xiaofan <xiaofanc@gmail.com>
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6384
Reviewed-by: Xiaofan <xiaofanc@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins