remove token dictionary and unpickling from init

geneformer/mtl/__init__.py

@@ -1,11 +1 @@
-# ruff: noqa: F401
-from .. import TOKEN_DICTIONARY_FILE
-import pickle
-
-def load_token_dictionary():
-    with open(TOKEN_DICTIONARY_FILE, 'rb') as f:
-        return pickle.load(f)
-
-TOKEN_DICTIONARY = load_token_dictionary()
-
-__all__ = ["TOKEN_DICTIONARY"]
+# ruff: noqa: F401