message: impl: remove duplicate of 'cfg' attribute
  PR
diff: @@ -628,7 +628,6 @@ pub use crate::re_builder::unicode::*;
  #[cfg(feature = "std")]
  pub use crate::re_set::unicode::*;
  #[cfg(feature = "std")]
  -#[cfg(feature = "std")]
  pub use crate::re_unicode::{
  escape, CaptureLocations, CaptureMatches, CaptureNames, Captures,
  Locations, Match, Matches, NoExpand, Regex, Replacer, ReplacerRef, Split,
  