remove some non-portable driver options

resource_management/db/__init__.py

@@ -38,8 +38,9 @@ def init_db_model(dsn):
 
     # cf. https://docs.sqlalchemy.org/en
     #        /latest/orm/extensions/automap.html
-    engine = create_engine(
-        dsn, pool_size=10, pool_recycle=3600)
+    engine = create_engine(dsn)
+    # engine = create_engine(
+    #     dsn, pool_size=10, pool_recycle=3600)
     # engine = create_engine(
     #     dsn, pool_size=10, max_overflow=0, pool_recycle=3600)