message: [libra-node] Remove duplicate setup_panic_handler
  I think we call `setup_panic_handler` twice. We already call this
  function at the beginning of `main`:
  so there is no need to call it again in `setup_environment`.
  Closes:
  Approved by: davidiw
diff: @@ -63,8 +63,6 @@ fn setup_debug_interface(config: &NodeConfig) -> NodeDebugService {
  }
  pub fn setup_environment(node_config: &mut NodeConfig) -> LibraHandle {
  - crash_handler::setup_panic_handler();
  -
  // Some of our code uses the rayon global thread pool. Name the rayon threads so it doesn't
  // cause confusion, otherwise the threads would have their parent's name.
  rayon::ThreadPoolBuilder::new()
  