To remove that banner go to:
  1. onMessage
  2. Website
  3. Main Site
  4. Master layout
  5. Click the name of the Master layout for the affected page 
  6. Scroll down to content region and click the X to remove the Page Title
  7. Apply changes
Once you do that you can go page to the actual page under Pages & Menus, view the page and should no longer see the title on top of your banner.