Extra empty parameters in configuration file of Murano API

[Timur Nurlygayanov]

Need to remove extra configuration parameters from the configuration files.

For example we can see in default configuration file:
 *murano-api.conf*
{code}
...
[rabbitmq]
# Path to SSL CA certificate or empty to allow self signed server certificate
ca_certs =
...
{code}

Need to add '#' before each empty default parameter, like
 *murano-api.conf*
{code}
...
[rabbitmq]
# Path to SSL CA certificate or empty to allow self signed server certificate
#ca_certs =
...
{code}

and check that Murano API will use correct default values for those parameters, if parameters will don't present in configuration file.

[Timur Nurlygayanov (tnurlygayanov)]

https://review.openstack.org/#/c/53558