chore: fmt and cleanup

src/expr.rs

@@ -107,16 +107,8 @@ pub(crate) fn format_expr(
         }
         ast::ExprKind::Unary(op, ref subexpr) => rewrite_unary_op(context, op, subexpr, shape),
         ast::ExprKind::Struct(ref struct_expr) => {
-            let ast::StructExpr { ref fields, ref path, ref rest } = **struct_expr;
-            rewrite_struct_lit(
-                context,
-                path,
-                fields,
-                rest,
-                &expr.attrs,
-                expr.span,
-                shape,
-            )
+            let ast::StructExpr { fields, path, rest } = &**struct_expr;
+            rewrite_struct_lit(context, path, fields, rest, &expr.attrs, expr.span, shape)
         }
         ast::ExprKind::Tup(ref items) => {
             rewrite_tuple(context, items.iter(), expr.span, shape, items.len() == 1)

src/formatting.rs

@@ -4,7 +4,7 @@ use std::collections::HashMap;
 use std::io::{self, Write};
 use std::time::{Duration, Instant};
 
-use rustc_ast::{ast, AstLike};
+use rustc_ast::ast;
 use rustc_span::Span;
 
 use self::newline_style::apply_newline_style;

src/patterns.rs

@@ -1,4 +1,4 @@
-use rustc_ast::ast::{self, BindingMode, PatField, Pat, PatKind, RangeEnd, RangeSyntax};
+use rustc_ast::ast::{self, BindingMode, Pat, PatField, PatKind, RangeEnd, RangeSyntax};
 use rustc_ast::ptr;
 use rustc_span::{BytePos, Span};