Rollup merge of #58588 - matklad:dead-code, r=petrochenkov

remove a bit of dead code

[Six years](https://github.com/rust-lang/rust/commit/5dc5efefd47527067ab5b7862d89a99da4824f49) seem to be a long enough transition period :rofl:

1 files changed, 0 insertions, 6 deletions

diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index 48f6e4c0c82..27b0cfb1630 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -9,12 +9,6 @@ use crate::ThinVec;
 use rustc_target::spec::abi::Abi;
 use syntax_pos::{Pos, Span, DUMMY_SP};
 
-// Transitional re-exports so qquote can find the paths it is looking for
-mod syntax {
-    pub use crate::ext;
-    pub use crate::parse;
-}
-
 pub trait AstBuilder {
     // paths
     fn path(&self, span: Span, strs: Vec<ast::Ident> ) -> ast::Path;