prepare_live_image: fix calling function with wrong number of args

repos/system_upgrade/common/actors/livemode/modify_userspace_for_livemode/libraries/prepareliveimage.py

@@ -269,7 +269,7 @@ def enable_dbus(context):
             raise StopActorExecutionError('Cannot enable the dbus services', details=details)
 
 
-def setup_network(context, enable_nm):
+def setup_network(context):
     """
     Setup network for the livemode image.
 
@@ -280,7 +280,7 @@ def setup_network(context, enable_nm):
     """
     # TODO(mhecko): implementation here is incomplete
     # ideally we'd need to run 'nmcli con migrate' for the live mode.
-    if not enable_nm or get_target_major_version() < "9":
+    if get_target_major_version() < "9":
         return  # 8>9 only
 
     network_scripts_path = '/etc/sysconfig/network-scripts'