allow rustfmt to reorder imports

This wasn't a right decision in the first place, the feature flag was
broken in the last rustfmt release, and syntax highlighting of imports
is more important anyway

crates/ra_mbe/src/lib.rs

@@ -41,14 +41,8 @@ pub enum ExpandError {
 }
 
 pub use crate::syntax_bridge::{
-    ast_to_token_tree,
-    token_tree_to_ast_item_list,
-    syntax_node_to_token_tree,
-    token_tree_to_expr,
-    token_tree_to_pat,
-    token_tree_to_ty,
-    token_tree_to_macro_items,
-    token_tree_to_macro_stmts,
+    ast_to_token_tree, syntax_node_to_token_tree, token_tree_to_ast_item_list, token_tree_to_expr,
+    token_tree_to_macro_items, token_tree_to_macro_stmts, token_tree_to_pat, token_tree_to_ty,
 };
 
 /// This struct contains AST for a single `macro_rules` definition. What might