uio_hv_generic: add missed sysfs_remove_bin_file

This driver calls sysfs_create_bin_file() in probe, but forgets to
call sysfs_remove_bin_file() in remove.
Add the missed call to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20200507151343.792816-1-hslester96@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>