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_syntax/src/syntax_text.rs

@@ -1,6 +1,9 @@
-use std::{fmt, ops::{self, Bound}};
+use std::{
+    fmt,
+    ops::{self, Bound},
+};
 
-use crate::{SmolStr, SyntaxNode, TextRange, TextUnit, SyntaxElement};
+use crate::{SmolStr, SyntaxElement, SyntaxNode, TextRange, TextUnit};
 
 #[derive(Clone)]
 pub struct SyntaxText<'a> {