Cleanup reference to TFBertTokenizer and TFGPT2Tokenizer (#42182)

* Cleanup reference to TFBertTokenizer

* Remove the GPT2 TF tokenizer too

Author: Rocketknight1

src/transformers/models/bert/__init__.py

@@ -22,7 +22,6 @@
     from .modeling_bert import *
     from .tokenization_bert import *
     from .tokenization_bert_fast import *
-    from .tokenization_bert_tf import *
 else:
     import sys
 

src/transformers/models/gpt2/__init__.py

@@ -22,7 +22,6 @@
     from .modeling_gpt2 import *
     from .tokenization_gpt2 import *
     from .tokenization_gpt2_fast import *
-    from .tokenization_gpt2_tf import *
 else:
     import sys
 

utils/check_docstrings.py

@@ -109,10 +109,6 @@ class DecoratedItem:
     # Deprecated
     "InputExample",
     "InputFeatures",
-    # Signature is *args/**kwargs
-    "TFSequenceSummary",
-    "TFBertTokenizer",
-    "TFGPT2Tokenizer",
     # Missing arguments in the docstring
     "ASTFeatureExtractor",
     "AlbertModel",