Get rid of "Failed to enumerate USB devices" error log

[adamschmideg]

When I run a Geth instance, it starts with a bunch of error logs complaining "Failed to enumerate USB devices". I'm not using a hardware wallet.

System information

Geth version: 1.9.9
OS & Version: both Linux, and OSX
Commit hash : (if develop)

Expected behaviour

Complaing about a problem with usb only if I explicitly expressed I want to use usb.

Actual behaviour

Always complains.

Steps to reproduce the behaviour

geth :)

[karalabe]

You can run with --nousb if you want USB wallet support disabled. By default it's enabled.

[lynomet]

Alternatively you can add libusb to docker container :
apk add libusb
apk add libusb-dev

and error will go away