remove yardstick_key from the repo

JIRA: YARDSTICK-370

private key should not be in the repo. yardstick image now use
yardstick_key in the repo to log in the vm, so it should be
change to automatic generate it.

also the userguide should be updated to generate yardstick_key
before the test.

Change-Id: I61775bb429a8fddb9b8d312203f10ec369a1f801
Signed-off-by: JingLu5 <lvjing5@huawei.com>

0 files changed, 0 insertions, 0 deletions