Remove commented lines

Author: IntQuant

compiler/rustc_infer/src/lib.rs

@@ -23,8 +23,6 @@
 #![feature(never_type)]
 #![feature(try_blocks)]
 #![recursion_limit = "512"] // For rustdoc
-// #![deny(rustc::untranslatable_diagnostic)]
-// #![deny(rustc::diagnostic_outside_of_impl)]
 
 #[macro_use]
 extern crate rustc_macros;