Remove unneeded version declaration
Remove unneeded version declaration

These versions are declared upstream, no need to repeat them here.

Change-Id: Iac58a882ebbb57206348b48165f013b87aca9ff6
Signed-off-by: Robert Varga <91ae5aa8c7a9f7e57b701db766e23e544aaa6ae9@pantheon.tech>

opendaylight/yangtools,opendaylight/yangtools