SOL005_#120 DELETE Method (on Individual subscription) description and response updated

src/SOL005/NSPerformanceManagement/NSPerformanceManagement.yaml

@@ -1159,7 +1159,14 @@ paths:
         This method terminates an individual subscription.
         This method shall follow the provisions specified in the 
         Tables 7.4.8.3.5-1 and 7.4.8.3.5-2 for URI query parameters,
-        request and response data structures, and response codes
+        request and response data structures, and response codes.
+        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: >
@@ -1173,7 +1180,8 @@ paths:
           description: >
             204 NO CONTENT
 
-            The subscription resource was deleted successfully.
+            Shall be returned when the subscription resource has been 
+            deleted successfully.
             The response body shall be empty.
           headers:
             WWW-Authenticate: