message: Remove redundant type
  TS will infer it based on the signature
diff: @@ -19,13 +19,10 @@ async function mergeIfStatements(editor: Editor) {
  function updateCode(ast: t.AST, selection: Selection): t.Transformed {
  return t.transformAST(
  ast,
  - createVisitor(
  - selection,
  - (path: t.NodePath<t.IfStatement>, mergeIfStatements) => {
  + createVisitor(selection, (path, mergeIfStatements) => {
  mergeIfStatements.execute();
  path.stop();
  - }
  - )
  + })
  );
  }
  