How do I delete all the relations on my site? I want to remove all the relations (created with the Relation module) on my site because I have replaced them with an entityreference field.

At /admin/structure/relation, I can delete the Relation Types, but this does not delete the relations belonging to each type.

At /admin/content/relation, I can delete the relations individually, but there are 100K relations on this site.

At /admin/structure/views/view/relations/edit/page, with the Views Bulk Operations module enabled, I can change the contextual filter Relation: relation type to "Display all results for the specified field" for When the filter value is NOT in the URL and then add a bulk operation to delete item under Fields.  This allows me to go to /relations and trigger a bulk operation to delete all the relations. 

Is there a faster way that doesn't involve customizing views?
There are many ways to delete relations on a site. Relations are Entities in Drupal.


The Delete All module can help with this process.
The Drush Entity command set has a delete function which takes a content type I believe.
With care you could by hand TRUNCATE the relation table, and destroy and drupal Fields that use relations. (I've done this on a few sites).