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-explore/src/nu_common/value.rs

@@ -112,10 +112,6 @@ pub fn collect_input(value: Value) -> Result<(Vec<String>, Vec<Vec<Value>>)> {
 
             Ok((vec![String::from("")], lines))
         }
-        Value::LazyRecord { val, .. } => {
-            let materialized = val.collect()?;
-            collect_input(materialized)
-        }
         Value::Nothing { .. } => Ok((vec![], vec![])),
         Value::Custom { val, .. } => {
             let materialized = val.to_base_value(span)?;