staging: serqt_usb2: remove unneeded return in qt_throttle

this return is in the end of the qt_throttle function, so this return
not needed

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed