Remove unnecessary pub.

Author: nnethercote

compiler/rustc_smir/src/rustc_internal/mod.rs

@@ -11,7 +11,7 @@ use rustc_driver::{Callbacks, Compilation, RunCompiler};
 use rustc_interface::{interface, Queries};
 use rustc_middle::mir::interpret::AllocId;
 use rustc_middle::ty::TyCtxt;
-pub use rustc_span::def_id::{CrateNum, DefId};
+use rustc_span::def_id::{CrateNum, DefId};
 use rustc_span::Span;
 use stable_mir::CompilerError;