message: chore: Clean up unused externs
diff: extern crate buttplug_derive;
  #[macro_use]
  extern crate strum_macros;
  -#[cfg(feature = "thread-pool-runtime")]
  -#[macro_use]
  -extern crate lazy_static;
  #[cfg(any(feature = "client", feature = "server"))]
  #[macro_use]
  extern crate futures;
  