Bugfix: "or None" is useless

"or None" would assign if the first term is false-y. But not specifying
it would already lead to the variable being set to None.

ci-scripts/main.py

@@ -166,7 +166,7 @@ def ExecuteActionWithParam(action, ctx, node):
 		CiTestObj.ping_args = test.findtext('ping_args')
 		CiTestObj.ping_packetloss_threshold = test.findtext('ping_packetloss_threshold')
 		CiTestObj.ue_ids = test.findtext('id').split(' ')
-		CiTestObj.svr_id = test.findtext('svr_id') or None
+		CiTestObj.svr_id = test.findtext('svr_id')
 		if test.findtext('svr_node'):
 			CiTestObj.svr_node = test.findtext('svr_node') if not force_local else 'localhost'
 		ping_rttavg_threshold = test.findtext('ping_rttavg_threshold') or ''
@@ -175,7 +175,7 @@ def ExecuteActionWithParam(action, ctx, node):
 	elif action == 'Iperf' or action == 'Iperf2_Unidir':
 		CiTestObj.iperf_args = test.findtext('iperf_args')
 		CiTestObj.ue_ids = test.findtext('id').split(' ')
-		CiTestObj.svr_id = test.findtext('svr_id') or None
+		CiTestObj.svr_id = test.findtext('svr_id')
 		if test.findtext('svr_node'):
 			CiTestObj.svr_node = test.findtext('svr_node') if not force_local else 'localhost'
 		CiTestObj.iperf_packetloss_threshold = test.findtext('iperf_packetloss_threshold')