Use kubectl module from n2vc and remove it from odu_libs

Change-Id: I08a715564f32623dda1608937c7d35bb212a4961
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

osm_lcm/odu_workflows.py

@@ -17,8 +17,7 @@
 import logging
 from osm_lcm.lcm_utils import LcmBase
 
-# from n2vc import kubectl
-from osm_lcm.odu_libs import kubectl
+from n2vc import kubectl
 
 
 class OduWorkflow(LcmBase):