use tosca-parser
remove unnecessary includes

Change-Id: I3e758d6acd621bb8dd179c300e9cf77d710bb68d
diff --git a/xos/tosca/resources/cdnservice.py b/xos/tosca/resources/cdnservice.py
index 4082938..6dc73f0 100644
--- a/xos/tosca/resources/cdnservice.py
+++ b/xos/tosca/resources/cdnservice.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.hpc.models import HpcService
-
 from service import XOSService
+from services.hpc.models import HpcService
 
 class XOSCdnService(XOSService):
     provides = "tosca.nodes.CDNService"