message: Remove some unused items
  These were left over from the crate breakup in
diff: @@ -131,17 +131,6 @@ extern crate pikelet_elaborate;
  extern crate pikelet_library;
  extern crate pikelet_syntax;
  -#[cfg(feature = "cli")]
  -extern crate linefeed;
  -#[cfg(feature = "cli")]
  -#[macro_use]
  -extern crate structopt;
  -#[cfg(feature = "cli")]
  -extern crate term_size;
  -
  -#[cfg(feature = "cli")]
  -pub mod cli;
  -
  use codespan::{CodeMap, FileMap, FileName};
  use codespan_reporting::Diagnostic;
  use std::sync::Arc;
  