[es7] Remove standard filter

cubicweb_elasticsearch/entities.py

@@ -55,8 +55,7 @@ class Indexer(EsRegistry):
         'settings': {
             'analysis': {
                 'analyzer': {
-                    'default': {'filter': ['standard',
-                                           'my_ascii_folding',
+                    'default': {'filter': ['my_ascii_folding',
                                            'lowercase',
                                            'french_snowball'],
                                 'tokenizer': 'standard'}