fix(emailtemplate): remove orphaned email templates
Fix:
Remove orphaned email template records without group_id
created from this migration for new instances!
Note - as per discussion with Ryan and PK
- Seeding of default email templates is handled in seed scripts code after multi-tenancy 2.0 release, use of env flags
USE_APERTURE_EMAIL
USE_COLAB_EMAIL
will be deprecated and removed.