Remove usage of -k switch in clone command

[dilshat]

Currently -k switch is used when cloning containers during environment creation/modification.
-k switch is used when it is needed to import templates and clone them in the same command.
This is obsolete since templates are pre-imported by Subutai Console right before cloning.
Thus we can remove the usage of -k switch which would solve the problem with outdated Kurjun token.
See subutai-io/cdn#94

[dilshat]

Currently can not easily remove token from clone command since without it Kurjun can not identify private template by ID. Closing for now