[SHIBUI-1030]

Removed an unused (and autowired) service.

backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/controller/ConfigurationController.java

@@ -25,9 +25,6 @@ public class ConfigurationController {
     @Autowired
     RoleRepository roleRepository;
 
-    @Autowired
-    EmailService emailService;
-
     @GetMapping(value = "/customAttributes")
     public ResponseEntity<?> getCustomAttributes() {
         return ResponseEntity.ok(customPropertiesConfiguration.getAttributes());