chore: remove repetitive words

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -494,7 +494,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                 {
                     self.suggest_cloning(err, ty, expr, None, Some(move_spans));
                 } else if self.suggest_hoisting_call_outside_loop(err, expr) {
-                    // The place where the the type moves would be misleading to suggest clone.
+                    // The place where the type moves would be misleading to suggest clone.
                     // #121466
                     self.suggest_cloning(err, ty, expr, None, Some(move_spans));
                 }

compiler/rustc_borrowck/src/region_infer/opaque_types.rs

@@ -40,7 +40,7 @@ impl<'tcx> RegionInferenceContext<'tcx> {
     /// compares lifetimes directly, so we need to map the inference variables
     /// back to concrete lifetimes: `'static`, `ReEarlyParam` or `ReLateParam`.
     ///
-    /// First we map the regions in the the generic parameters `_Return<'1>` to
+    /// First we map the regions in the generic parameters `_Return<'1>` to
     /// their `external_name` giving `_Return<'a>`. This step is a bit involved.
     /// See the [rustc-dev-guide chapter] for more info.
     ///