Update dataset_infos.json

dataset_infos.json

@@ -5,9 +5,6 @@
     "homepage": "",
     "license": "",
     "features": {
-      "split": {
-        "dtype": "string"
-      },
       "sentence1": {
         "dtype": "string"
       },
@@ -21,8 +18,8 @@
         "dtype": "int32"
       }
     },
-    "splits": {
-      "validation": {
+    "split": {
+      "dev": {
         "name": "validation",
         "num_bytes": 818081,
         "num_examples": 2001,