message: Remove __wbindgen_thread_id
  After talking to John, he mentioned that this function was once
  implemented in Wasmer, but it isn't implemented anymore, therefore
  preventing running wasmer-wasi using wasmer itself.
  Removing this buinding should do absolutely nothing, as it's not used
  anywhere (anymore).
diff: @@ -113,12 +113,6 @@ impl From<WasiBusProcessId> for u32 {
  }
  }
  -#[cfg(target_family = "wasm")]
  -#[link(wasm_import_module = "__wbindgen_thread_xform__")]
  -extern "C" {
  - fn __wbindgen_thread_id() -> u32;
  -}
  -
  #[derive(Debug, Clone)]
  pub struct WasiThread {
  /// ID of this thread
  