Drop the config schema generation subcommand & include it in the docs

crates/cli/src/commands/config.rs

@@ -14,7 +14,6 @@
 
 use clap::Parser;
 use mas_config::{ConfigurationSection, RootConfig};
-use schemars::gen::SchemaSettings;
 use tracing::info;
 
 #[derive(Parser, Debug)]
@@ -28,9 +27,6 @@ enum Subcommand {
     /// Dump the current config as YAML
     Dump,
 
-    /// Print the JSON Schema that validates configuration files
-    Schema,
-
     /// Check a config file
     Check,
 
@@ -49,18 +45,6 @@ impl Options {
 
                 Ok(())
             }
-            SC::Schema => {
-                let settings = SchemaSettings::draft07().with(|s| {
-                    s.option_nullable = false;
-                    s.option_add_null_type = false;
-                });
-                let gen = settings.into_generator();
-                let schema = gen.into_root_schema_for::<RootConfig>();
-
-                serde_yaml::to_writer(std::io::stdout(), &schema)?;
-
-                Ok(())
-            }
             SC::Check => {
                 let _config: RootConfig = root.load_config()?;
                 info!(path = ?root.config, "Configuration file looks good");