usb_master: Remove misleading comment in do_async_bulkin()
usb_master: Remove misleading comment in do_async_bulkin()

Leftover transactions are already handled safely, so the FIXME comment
describing the issue no longer applies.

Signed-off-by: Alexandru Gagniuc <cf8ce030f4bdd6ce49a1b687c7c3ccfa8b34ced2@gmail.com>

mrnuke/qiprog