Remove all the hidden flags in the skupper CLI.

Deprecated flags per command:
skupper init

• cluster-local
• edge
• xp-router-max-frame-size
• xp-router-max-session-frames

skupper gateway init

• exportonly
• name

skupper gateway delete

• name

skupper gateway download

• name

skupper gateway export-config

• name

skupper gateway expose

• name

skupper gateway unexpose

• name

skupper gateway bind

• name
• protocol

skupper gateway unbind

• name
• protocol

skupper gateway forward

• name
• protocol

skupper gateway unforward

• name
• protocol

Deprecated commands:
skupper bind
skupper unbind
skupper list-connectors
skupper connect
skupper disconnect
skupper check-connection
skupper connection-token
skupper list-exposed
skupper gateway download