If you don't want the title of the page to show, you can either hide or delete the code.
Go to the Appearance > Editor. On the left side look for Page Template (page.php). Click on it to view the codes. Look for the code where it mentions Title.
You can hide the title by adding "<!--" (without " ") at the beginning of the code and " --> " at the end. Once you have done your changes, click the Update File button at the bottom.
Pages will no longer show the title.