Cloudctl Postgres Create-Standby: --replicas flag has no effect

[eberlep]

There is a replicas flag:

 ~ $ c postgres create-standby --help
create postgres standby

Usage:
  cloudctl postgres create-standby [flags]

Flags:
      [..]
      --replicas int                 replicas of the database (default 1)

However, it is not used (standby instances are always created with only one replica). While this is the intended behaviour, the flag is confusing and should be removed.