USB: atm: remove unneeded MODULE_VERSION() usage

MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the USB ATM drivers.  Along with this, some
DRIVER_VERSION macros were removed as they are also pointless.

Cc: Duncan Sands <duncan.sands@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>