Some targets don't have alloc::sync

Author: Pratyush

std/src/lib.rs

@@ -29,12 +29,6 @@ pub mod slice {
     pub use alloc::slice::*;
 }
 
-#[cfg(not(feature = "std"))]
-pub mod sync {
-    pub use core::sync::*;
-    pub use alloc::sync::*;
-}
-
 #[cfg(not(feature = "std"))]
 pub mod str {
     pub use core::str::*;
@@ -51,9 +45,6 @@ pub mod error;
 #[doc(hidden)]
 pub use std::*;
 
-
-
-
 /// Creates parallel iterator over refs if `parallel` feature is enabled.
 #[macro_export]
 macro_rules! cfg_iter {