fcntoolbox/dolibarr.py: undo workaround

fcntoolbox/dolibarr.py

@@ -2,8 +2,7 @@
 # Style Guide for Python Code https://www.python.org/dev/peps/pep-0008/
 # Docstring Conventions https://www.python.org/dev/peps/pep-0257/
 
-#import psycopg2.sql as sql # >= 2.7
-from . import sql
+import psycopg2.sql as sql # >= 2.7
 
 class Instance:
   def __init__(self, conn):