How do I delete custom entity instances? I've create a custom entity content with Drupal console,

 drupal generate:entity:content


Now I want delete (remove) it completely, how can I achieve it with drupal console or drush ?

my drupal version is 8.1.8 and my drupal console is 1.0 beta 5 

update
I have serveral Entity in my module and I want to only remove one Content type, uninstalling module cause all Entity Database table dropped.     

I know I can looking for entity table in database remove it and all related file manually I looking for a method with Drupal console or Drush
Drush 9 supports deleting custom entities
drush entity:delete my_custom_entity