Remove unused feature.

nnethercote · nnethercote · commit 2052d2b17c05 · 2023-11-23T08:15:11.000+11:00
diff --git a/compiler/rustc_mir_dataflow/src/lib.rs b/compiler/rustc_mir_dataflow/src/lib.rs
@@ -4,7 +4,6 @@
 #![feature(let_chains)]
 #![feature(min_specialization)]
 #![feature(stmt_expr_attributes)]
-#![feature(trusted_step)]
 #![recursion_limit = "256"]
 #![deny(rustc::untranslatable_diagnostic)]
 #![deny(rustc::diagnostic_outside_of_impl)]
