Removes unnecessary pass

Change-Id: Ic127765e549ccb172328b35a991b67afcdbb583a
Merge "Removes unnecessary pass"
Allows users to retrieve ciphered VM passwords

This patch allows users to retrieve VM encrypted passwords using the
`nova get-password` command without specifying the private key.

Change-Id: I13ea132160dca912c6c1643b1006377982b778a1
Implements: blueprint retrieve-ciphered-vm-password
Merge "Allows users to retrieve ciphered VM passwords"