TEIS-2082: code review fix.

api-gateway/src/main/java/ee/sm/ti/teis/commongateway/role/RoleTestController.java

@@ -55,7 +55,7 @@ public class RoleTestController extends TeisBaseController {
         return (Set<String>) service.sendAndReceive(request);
     }
 
-    @ApiOperation(value = "${teis.api.messages.get-roles-by-email-recipient}", response = Set.class)
+    @ApiOperation(value = "${teis.api.messages.get-roles-by-email-recipient}")
     @GetMapping("rolesbyemailrecipient")
     public List<RoleDefinitionPublicDto> getRolesByEmailRecipient(@RequestParam(value = "emailRecipient") Boolean emailRecipient,
             RequestMetaDTO requestMetaDTO) {