cli/command: remove Apply from Cli interface

The Apply command was deprecated in 24bfedf3f8,
and has no known external users, but we didn't remove it from the interface.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/cli.go

@@ -44,7 +44,6 @@ type Cli interface {
 	Client() client.APIClient
 	Streams
 	SetIn(in *streams.In)
-	Apply(ops ...CLIOption) error
 	config.Provider
 	ServerInfo() ServerInfo
 	CurrentVersion() string