Delete a suppression from a suppression group
DELETE https://api.sendgrid.com/v3/asm/groups/:group_id/suppressions/:email
This endpoint allows you to remove a suppressed email address from the given suppression group.
Suppressions are recipient email addresses that are added to unsubscribe groups. Once a recipient's address is on the suppressions list for an unsubscribe group, they will not receive any emails that are tagged with that unsubscribe group.