The configure is not generated by autotools, and it's
designed to enable ipv6 by default and have option
--disable-ipv6 to disable it, but no --enable-ipv6,
so remove it.
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>