In this update, the nbp-ansible is removed from stor4nfv repo and
all code has been merged into ansible repo. Besides, the latest
update reduce a lot of work to download and build opensds source
code. And some installation docs are also updated.
Remove license statement for the moment.
Change-Id: Ib8504d96e2d41e1c3ab7e0c94689111679d56abd
Signed-off-by: leonwang <wanghui71@huawei.com>