use tosca-parser
remove unnecessary includes

Change-Id: I092bb907c900de6008d3c8df51bda9859f9d66aa
diff --git a/xos/tosca/resources/onosservice.py b/xos/tosca/resources/onosservice.py
index 3540dd0..47c7f1d 100644
--- a/xos/tosca/resources/onosservice.py
+++ b/xos/tosca/resources/onosservice.py
@@ -1,15 +1,7 @@
-import os
-import pdb
-import sys
-import tempfile
-sys.path.append("/opt/tosca")
-from translator.toscalib.tosca_template import ToscaTemplate
-
+from service import XOSService
 from core.models import ServiceAttribute
 from services.onos.models import ONOSService
 
-from service import XOSService
-
 class XOSONOSService(XOSService):
     provides = "tosca.nodes.ONOSService"
     xos_model = ONOSService