remove comments

Author: Aditya-PS-05

crates/hir-ty/src/tests/regression/new_solver.rs

@@ -554,13 +554,11 @@ where
 }
 
 #[test]
-// #[should_panic(expected = "Unexpected type mismatches")]
 fn regression_19957() {
     // This test documents issue #19957: async-trait patterns incorrectly produce
     // type mismatches between Pin<Box<dyn Future>> and Pin<Box<impl Future>>.
     //
     // The test currently FAILS (as expected) because the bug is not yet fixed.
-    // When the bug is fixed, remove the #[should_panic] attribute.
     check_no_mismatches(
         r#"
 //- minicore: future, pin, result, error, send, coerce_unsized, dispatch_from_dyn