Remove lazy records (#12682)

# Description
Removes lazy records from the language, following from the reasons
outlined in #12622. Namely, this should make semantics more clear and
will eliminate concerns regarding maintainability.

# User-Facing Changes
- Breaking change: `lazy make` is removed.
- Breaking change: `describe --collect-lazyrecords` flag is removed.
- `sys` and `debug info` now return regular records.

# After Submitting
- Update nushell book if necessary.
- Explore new `sys` and `debug info` APIs to prevent them from taking
too long (e.g., subcommands or taking an optional column/cell-path
argument).

crates/nu-plugin/src/plugin/command.rs

@@ -381,11 +381,6 @@ pub(crate) fn render_examples(
                             plugin.custom_value_to_base_value(engine, val.into_spanned(span))?;
                         Ok::<_, ShellError>(())
                     }
-                    // Collect LazyRecord before proceeding
-                    Value::LazyRecord { ref val, .. } => {
-                        *value = val.collect()?;
-                        Ok(())
-                    }
                     _ => Ok(()),
                 }
             })?;