Fix usage of session_try_nolock

xbob/db/mobio/create.py

@@ -1684,7 +1684,7 @@ def create_tables(args):
 def create(args):
   """Creates or re-creates this database"""
 
-  from bob.db.utils import session
+  from bob.db.utils import session_try_nolock
 
   dbfile = args.files[0]