bdd: recreate functions on template DB

Avoids calling function refresh on every scenario. The content won't
change between runs.

test/bdd/steps/steps_db_ops.py

@@ -93,7 +93,6 @@ def add_data_to_planet_ways(context):
 def import_and_index_data_from_place_table(context):
     """ Import data previously set up in the place table.
     """
-    context.nominatim.run_nominatim('refresh', '--functions')
     context.nominatim.run_nominatim('import', '--continue', 'load-data',
                                               '--index-noanalyse', '-q',
                                               '--offline')