fix dogfood lints in redundant_local

Author: max-niederman

clippy_lints/src/redundant_local.rs

@@ -1,5 +1,8 @@
 use clippy_utils::diagnostics::span_lint_and_help;
-use rustc_ast::{ast::*, visit::FnKind};
+use rustc_ast::{
+    ast::{BindingAnnotation, Block, Expr, ExprKind, LocalKind, Mutability, Pat, PatKind, Path, StmtKind},
+    visit::FnKind,
+};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
@@ -53,7 +56,7 @@ impl EarlyLintPass for RedundantLocal {
                     kind: ExprKind::Block(block, _),
                     ..
                 },
-            ) => &block,
+            ) => block,
             _ => return,
         };
 
@@ -95,7 +98,7 @@ fn check_block_with_bindings(cx: &EarlyContext<'_>, bindings: &mut FxHashMap<Ide
                         vec![prev.definition_span, local.span],
                         "redundant redefinition of a binding",
                         None,
-                        &format!("remove the redefinition of `{}`", ident),
+                        &format!("remove the redefinition of `{ident}`"),
                     );
                 }
             }
@@ -118,5 +121,5 @@ fn collect_introduced_bindings(bindings: &mut FxHashMap<Ident, BindingInfo>, pat
             );
         }
         true
-    })
+    });
 }