Remove adt_const_params usage from compiler

compiler/rustc_errors/src/lib.rs

@@ -6,7 +6,6 @@
 #![feature(array_windows)]
 #![feature(drain_filter)]
 #![feature(if_let_guard)]
-#![feature(adt_const_params)]
 #![feature(let_chains)]
 #![feature(never_type)]
 #![feature(result_option_inspect)]
@@ -845,7 +844,7 @@ impl Handler {
         &self,
         msg: impl Into<DiagnosticMessage>,
     ) -> DiagnosticBuilder<'_, ErrorGuaranteed> {
-        DiagnosticBuilder::new_guaranteeing_error::<_, { Level::Error { lint: false } }>(self, msg)
+        DiagnosticBuilder::new_guaranteeing_error(self, msg)
     }
 
     /// This should only be used by `rustc_middle::lint::struct_lint_level`. Do not use it for hard errors.