message: Remove updateMessage() test
  Confirmed it works!
diff: @@ -2,7 +2,6 @@ import {
  simplifyTernary,
  createTernaryToSimplifyVisitor
  } from "./simplify-ternary";
  -import * as t from "../../ast";
  import { RefactoringWithActionProvider } from "../../types";
  @@ -14,10 +13,7 @@ const config: RefactoringWithActionProvider = {
  },
  actionProvider: {
  message: "Simplify ternary",
  - createVisitor: createTernaryToSimplifyVisitor,
  - updateMessage(path: t.NodePath): string {
  - return `Simplify ternary (for demo purposes only: ${path.node.type})`;
  - }
  + createVisitor: createTernaryToSimplifyVisitor
  }
  };
  