Remove "I do not have a way to automatically test"
Remove "I do not have a way to automatically test"

- Travis CI supported Xcode 7.2

Signed-off-by: Koichi Shiraishi <2e5bdfebde234ed3509bcfc18121c70b6631e207@gmail.com>

zchee/docker-machine-driver-xhyve,zchee/docker-machine-driver-xhyve