Auto merge of #9617 - danieleades:refactor/useless-conversions, r=ehuss

remove useless conversions

Author: bors

src/cargo/core/compiler/output_depinfo.rs

@@ -84,7 +84,7 @@ fn add_deps_for_unit(
                 // The paths we have saved from the unit are of arbitrary relativeness and may be
                 // relative to the crate root of the dependency.
                 let path = unit.pkg.root().join(path);
-                deps.insert(path.into());
+                deps.insert(path);
             }
         }
     }