Remove requests dep

Signed-off-by: GitHub <[email protected]>

Author: chethanuk

daprdocs/content/en/developing-applications/building-blocks/service-invocation/howto-invoke-discover-services.md

@@ -264,8 +264,7 @@ public class OrderProcessingServiceApplication {
 ```python
 #dependencies
 import random
-from time import sleep    
-import requests
+from time import sleep
 import logging
 from dapr.clients import DaprClient