Remove type alias (only to get a CI run)

Author: pitdicker

src/lib.rs

@@ -467,8 +467,6 @@ extern crate alloc;
 
 mod time_delta;
 pub use time_delta::TimeDelta;
-/// Alias of [`TimeDelta`]
-pub type Duration = TimeDelta;
 #[cfg(feature = "std")]
 #[doc(no_inline)]
 pub use time_delta::OutOfRangeError;