Remove files

Author: luozhouyang

transformers_keras/__init__.py

@@ -41,8 +41,6 @@
 from transformers_keras.adapters.albert_adapter import AlbertAdapter, AlbertAdapterForTensorFlow
 from transformers_keras.adapters.bert_adapter import BertAdapter, BertAdapterForTensorFlow
 from transformers_keras.adapters.mengzi_adapter import BertAdapterForLangboatMengzi
-from transformers_keras.common.char_tokenizer import BertCharTokenizer, TokenizerEncoding
-from transformers_keras.common.label_tokenizer import LabelTokenizerForTokenClassification
 from transformers_keras.common.metrics import ExactMatch, F1ForSequence
 from transformers_keras.distiller import Distiller
 from transformers_keras.lm.mlm import BertForMaskedLanguageModel