[SYNCOPE-383] Pwd won't be mandatory anymore during user update (removed test for issue 147). Pwd existence will be checked during provisioning and may be considered like a generic propagation error.

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1488258 13f79535-47bb-0310-9956-ffa450edef68