Remove sleep before starting the monitoring agent service

Change-Id: Ia9284340c4a53ee93def99a22261354b1e8d5b12
diff --git a/edge-monitoring/agent_modem/edge_monitoring_agent_modem.py b/edge-monitoring/agent_modem/edge_monitoring_agent_modem.py
old mode 100644
new mode 100755
index ad3f59f..d89e827
--- a/edge-monitoring/agent_modem/edge_monitoring_agent_modem.py
+++ b/edge-monitoring/agent_modem/edge_monitoring_agent_modem.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2020-present Open Networking Foundation
 #