message: Removed unused crate imports
diff: @@ -9,10 +9,8 @@ extern crate log;
  extern crate log_settings;
  #[macro_use]
  extern crate rustc;
  -extern crate rustc_borrowck;
  extern crate rustc_const_math;
  extern crate rustc_data_structures;
  -extern crate rustc_mir;
  extern crate syntax;
  // From crates.io.
  