Update tokenizer_config.json

tokenizer_config.json

@@ -9,6 +9,6 @@
   "sep_token": "[SEP]",
   "strip_accents": true,
   "tokenize_chinese_chars": true,
-  "tokenizer_class": "DistilBertGreekTokenizer",
+  "tokenizer_class": "DistilBertTokenizer",
   "unk_token": "[UNK]"
 }