remove __index_level_0__ column

README.md

@@ -7,17 +7,15 @@ dataset_info:
     dtype: int64
   - name: label_text
     dtype: string
-  - name: __index_level_0__
-    dtype: int64
   splits:
   - name: train
-    num_bytes: 5293497
+    num_bytes: 5256761
     num_examples: 4592
   - name: test
-    num_bytes: 1268580
+    num_bytes: 1259388
     num_examples: 1149
-  download_size: 3802349
-  dataset_size: 6562077
+  download_size: 3765929
+  dataset_size: 6516149
 configs:
 - config_name: default
   data_files:

data/test-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:93aa53d5b6e5eefe34d869e78c795f0d873d05623e8a9f87bdf77afd38e91dd6
-size 733202
+oid sha256:dbe1c672766edbc0649789ea47a5f47f449141425f3f8ecbdc446611f66508f7
+size 725554

data/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b3296214e5adac512d33ec3f4d05f31c4988f2ad0ef254204a52a01bfe075f86
-size 3069147
+oid sha256:bf3498f0291b5ba6217622abb561cb5d610df0f2456c41c29a7343ae64b28ff1
+size 3040375