Fixing RO Security Vulnerabilities

Jinja2 sets autoescape to False, disabling SSL certificate checks, use of unsafe yaml load,
Try-Except-Pass detected, use of assert detected.
Removing openmanoconfig.py.

Change-Id: I3353208e150ae6c2f91befa1a3bbed33ed0c528d
Signed-off-by: aticig <gulsum.atici@canonical.com>
diff --git a/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py b/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py
index df8914b..5fc0704 100644
--- a/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py
+++ b/RO-VIM-aws/osm_rovim_aws/vimconn_aws.py
@@ -141,9 +141,9 @@
                 try:
                     if flavor_data[0] == "@":  # read from a file
                         with open(flavor_data[1:], "r") as stream:
-                            self.flavor_info = yaml.load(stream, Loader=yaml.Loader)
+                            self.flavor_info = yaml.safe_load(stream)
                     else:
-                        self.flavor_info = yaml.load(flavor_data, Loader=yaml.Loader)
+                        self.flavor_info = yaml.safe_load(flavor_data)
                 except yaml.YAMLError as e:
                     self.flavor_info = None