'hid_hw_stop()' is already in the error handling path when branching to
the 'hid_hw_open_fail' label.
There is no point in calling it twice, so remove one.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>