USB: legousbtower: drop superfluous newlines

Drop some superfluous newlines before conditionals which made the code
harder to read.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191105084152.16322-15-johan@kernel.org


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