host_key defines the private host keys as plain list of strings.
Remove the other deprecated config params from the default config too.
Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
HTTP clients are used for executing hooks such as the ones used for custom
actions, external authentication and pre-login user modifications.
This allows, for example, to use self-signed certificate without defeating the
purpose of using TLS