message: docs(aio): remove doble title from setup
diff: @@ -10,9 +10,6 @@ Install the Angular QuickStart seed for faster, more efficient development on yo
  {@a develop-locally}
  -
  -## Setup a local development environment
  -
  The <live-example name=quickstart>QuickStart live-coding</live-example> example is an Angular _playground_.
  It's not where you'd develop a real application.
  You [should develop locally](guide/setup#why-locally "Why develop locally") on your own machine ... and that's also how we think you should learn Angular.
  