Some clippy fixes

crates/ra_syntax/src/ast/make.rs

@@ -129,11 +129,11 @@ pub fn where_clause(preds: impl Iterator<Item = ast::WherePred>) -> ast::WhereCl
 }
 
 pub fn if_expression(condition: &ast::Expr, statement: &str) -> ast::IfExpr {
-    return ast_from_text(&format!(
+    ast_from_text(&format!(
         "fn f() {{ if !{} {{\n    {}\n}}\n}}",
         condition.syntax().text(),
         statement
-    ));
+    ))
 }
 
 fn ast_from_text<N: AstNode>(text: &str) -> N {