optimization for changefeed remove

[amyangfei]

Feature Request

Is your feature request related to a problem? Please describe:

• If advertise-addr is not provided and addr binds on 0.0.0.0, cdc cli changefeed remove will fail

» changefeed remove --changefeed-id abf925e9-2a84-42ac-ac28-9f41ec0b9c95
Error: Post "http://0.0.0.0:8300/capture/owner/admin": EOF
Usage:
  cli changefeed remove [flags]
Flags:
      --changefeed-id string   Replication task (changefeed) ID
  -h, --help                   help for remove
Post "http://0.0.0.0:8300/capture/owner/admin": EOF

• If not captures are deployed and changefeed is created, we can't use cdc cli changefeed remove to remove a changefeed

[overvenus]

Will be fixed in #570 .