You can delete using a column class instead of the column name. For instance if you want to delete all rows that contain the email address example_email@databricks.com from any table that contains a column classified as email, then you can run
dx.delete_by_class(from_tables="*.*.*", by_class="email", values=['example_email@databricks.com'], yes_i_am_sure=True, min_score=0.95)
If you want to preview the delete statements before applying them, then use yes_i_am_sure=False:
dx.delete_by_class(from_tables="*.*.*", by_class="email", values=['example_email@databricks.com'], yes_i_am_sure=False, min_score=0.95)