Empty Front page | Remove "Welcome" & front page content

You may want to clean up the front page at times and remove the "No front page content has been created yet" as well as to prevent the promoted contents from showing on the front page. "Empty Front Page" module just right for you. No configuration needed to be done. Simply install and enable the module and you are good to go. Video gives you a brief introduction to what the module is doing. There's module for Drupal 8 being developed also. 

Module:
https://www.drupal.org/project/empty_front_page