use tosca-parser
remove unnecessary includes

Change-Id: I794de45cba214eee9005fda4d869560ca10cfb9b
diff --git a/xos/tosca/resources/vrouterservice.py b/xos/tosca/resources/vrouterservice.py
index 14dabcc..64ee455 100644
--- a/xos/tosca/resources/vrouterservice.py
+++ b/xos/tosca/resources/vrouterservice.py
@@ -1,13 +1,5 @@
-import os
-import pdb
-import sys
-import tempfile
-sys.path.append("/opt/tosca")
-from translator.toscalib.tosca_template import ToscaTemplate
-
-from services.vrouter.models import VRouterService
-
 from service import XOSService
+from services.vrouter.models import VRouterService
 
 class XOSVRouterService(XOSService):
     provides = "tosca.nodes.VRouterService"