How To Disable Drupal "Create New Account" Link or Tab If Using Profile2 Registration Path ?

The default Drupal login page at /user/login shows three tabs - Login, Create New Account and Request Password. Using the tabs, a visitor can either login, create a new account or request password. If visitors cannot create accounts on the Drupal website themselves, then the "Create new account" link or tab can be disabled easily from Drupal administration. But when using Profile2 and Profile2 Registration path, the Drupal default "user/register" path lies redundant. In this post, we shall see how to disable the "Create new account" tab from the default user login page.