Remove unneeded extern crate, macro_use, and tidy uses.

crates/wasi-common/src/error.rs

@@ -2,9 +2,8 @@
 #![allow(clippy::use_self)]
 use crate::wasi;
 use std::convert::Infallible;
-use std::fmt;
 use std::num::TryFromIntError;
-use std::str;
+use std::{fmt, str};
 use thiserror::Error;
 
 #[derive(Clone, Copy, Debug, Error, Eq, PartialEq)]

crates/wasi-common/src/hostcalls/misc.rs

@@ -2,7 +2,6 @@
 use crate::ctx::WasiCtx;
 use crate::{wasi, wasi32};
 use log::trace;
-
 use wasi_common_cbindgen::wasi_common_cbindgen;
 
 #[wasi_common_cbindgen]

crates/wasi-common/src/wasi32.rs

@@ -6,9 +6,8 @@
 #![allow(non_snake_case)]
 #![allow(dead_code)]
 
-use wig::witx_wasi32_types;
-
 use crate::wasi::*;
+use wig::witx_wasi32_types;
 
 pub type uintptr_t = u32;
 pub type size_t = u32;

crates/wasi-common/wasi-common-cbindgen/tests/array_args.rs

@@ -1,5 +1,3 @@
-extern crate wasi_common_cbindgen;
-
 pub use wasi_common_cbindgen::wasi_common_cbindgen;
 
 #[wasi_common_cbindgen]

crates/wasi-common/wasi-common-cbindgen/tests/mut_args.rs

@@ -1,5 +1,3 @@
-extern crate wasi_common_cbindgen;
-
 pub use wasi_common_cbindgen::wasi_common_cbindgen;
 
 #[wasi_common_cbindgen]

crates/wasi-common/wasi-common-cbindgen/tests/no_args.rs

@@ -1,5 +1,3 @@
-extern crate wasi_common_cbindgen;
-
 pub use wasi_common_cbindgen::wasi_common_cbindgen;
 
 #[wasi_common_cbindgen]

crates/wasi-common/wasi-common-cbindgen/tests/ref_args.rs

@@ -1,5 +1,3 @@
-extern crate wasi_common_cbindgen;
-
 pub use wasi_common_cbindgen::wasi_common_cbindgen;
 
 #[wasi_common_cbindgen]

crates/wasi-common/wasi-common-cbindgen/tests/val_args.rs

@@ -1,5 +1,3 @@
-extern crate wasi_common_cbindgen;
-
 pub use wasi_common_cbindgen::wasi_common_cbindgen;
 
 #[wasi_common_cbindgen]

crates/wasi-common/wig/src/lib.rs

@@ -1,7 +1,4 @@
 extern crate proc_macro;
-extern crate proc_macro2;
-extern crate quote;
-extern crate witx;
 
 mod raw_types;
 mod utils;

crates/wasi-common/winx/src/lib.rs

@@ -21,9 +21,6 @@
 )]
 #![cfg(windows)]
 
-#[macro_use]
-extern crate bitflags;
-
 pub mod file;
 pub mod time;
 pub mod winerror;