SOL002_104 DELETE Method (on "Threshold") description and response updated

src/SOL002/VNFPerformanceManagement/VNFPerformanceManagement.yaml

@@ -1272,6 +1272,11 @@ paths:
     delete:
       description: >
         This method terminates an individual subscription.
+        As the result of successfully executing this method, the "Individual subscription" 
+        resource shall not exist any longer. This means that no notifications for that 
+        subscription shall be sent to the formerly-subscribed API consumer. 
+        NOTE:	Due to race conditions, some notifications might still be received by the 
+        formerly-subscribed API consumer for a certain time period after the deletion.
       parameters:
         - name: Accept
           description: >
@@ -1285,7 +1290,8 @@ paths:
           description: >
             204 NO CONTENT
 
-            The subscription resource was deleted successfully.
+            Shall be returned when the "Individual subscription" resource has been 
+            deleted successfully.
             The response body shall be empty.
           headers:
             Version: