Bertha Gonzalez bought her wedding dress from Azteca Bridal in 1967. In the store’s last two weeks of operation, she came back this month for her great-granddaughter’s quinceañera dress.“This was a bridal shop for all of Arizona, especially for us … the Mexican people,” Gonzalez said.Azteca, which closed its doors this week after 60 years of service, began selling quinceañera