
HAProxy currently checks aodh backend with "HEAD /" and an expected return code of 401. The request actually returns "200 OK". The 401 would be returned if the check would target "HEAD /v2", but as all other backends that do not implement "/healthcheck" also check "HEAD /" for 2xx/3xx return codes, I removed the wrongly expected "401". Change-Id: If20216c605938c14a94d9b710d3f98b0d885b629 Closes-Bug: 1719875