Remove build date which fails spellcheck
Remove build date which fails spellcheck

https://travis-ci.org/github/collivier/functest/jobs/724612517

Change-Id: Iee849b624870a8106de0167f30bc1e31d47f1f13
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,opnfv/functest