Update README.md

README.md

@@ -85,10 +85,8 @@ We ask annotators to ignore those special tokens but label the verified users' m
 | train_all         |  7111 | combined training dataset of `train_2020` and `train_2021` |
 | validation_2020   |   576 | validation dataset from September 2019 to August 2020 |
 | validation_2021   |   310 | validation dataset from September 2020 to August 2021 | 
-| validation_all    |   886 | combined validation dataset of `validation_2020` and `validation_2021` |
 | test_2020         |   576 | test dataset from September 2019 to August 2020 |
 | test_2021         |  2807 | test dataset from September 2020 to August 2021 |
-| test_all          |  3383 | combined test dataset of `test_2020` and `test_2021` |
 | train_random      |  4616 | randomly sampled training dataset with the same size as `train_2020` from `train_all` |
 | validation_random |   576 | randomly sampled training dataset with the same size as `validation_2020` from `validation_all` |
 | extra_2020        | 87880 | extra tweet without annotations from September 2019 to August 2020 |