Ignore testGetOpenflowVersion: it is no longer applicable
The openFlow version is now determined by configuration's getProperty("ovsdb.of.version", "1.3").
Thus, the ovs version attribute (returned by ovs' OpenVSwitch table) is not used to determine what is
the openFlow version chosen by netVirtConfigurationService.
See: https://git.opendaylight.org/gerrit/#/c/11084/
https://github.com/opendaylight/ovsdb/commit/
2bc58c9cca16dc3e389cdfc18593578748fd52d5
Patch 2: include Sam's feedback
Change-Id: Icf4f3f633b2131a4521ef2509c02bcb0c7223abf
Signed-off-by: Flavio Fernandes <ffernand@redhat.com>