Remove __build_diagnostic_array! from cg_utils

Author: bjorn3

src/librustc_codegen_utils/lib.rs

@@ -60,5 +60,3 @@ pub fn check_for_rustc_errors_attr(tcx: TyCtxt) {
         }
     }
 }
-
-__build_diagnostic_array! { librustc_codegen_utils, DIAGNOSTICS }

src/librustc_driver/lib.rs

@@ -1697,7 +1697,6 @@ pub fn diagnostics_registry() -> errors::registry::Registry {
     all_errors.extend_from_slice(&rustc_privacy::DIAGNOSTICS);
     // FIXME: need to figure out a way to get these back in here
     // all_errors.extend_from_slice(get_codegen_backend(sess).diagnostics());
-    all_errors.extend_from_slice(&rustc_codegen_utils::DIAGNOSTICS);
     all_errors.extend_from_slice(&rustc_metadata::DIAGNOSTICS);
     all_errors.extend_from_slice(&rustc_passes::DIAGNOSTICS);
     all_errors.extend_from_slice(&rustc_plugin::DIAGNOSTICS);