Remove unused code.

lbox_open.py

@@ -14,13 +14,6 @@ _CASENAME_CLASSIFICATION_FEATURES = {
     "facts": datasets.Value("string"),
 }
 
-_CASENAME_CLASSIFICATION_PLUS_FEATURES = {
-    "id": datasets.Value("int64"),
-    "casetype": datasets.Value("string"),
-    "casename": datasets.Value("string"),
-    "facts": datasets.Value("string"),
-}
-
 _STATUTE_CLASSIFICATION_FEATURES = {
     "id": datasets.Value("int64"),
     "casetype": datasets.Value("string"),
@@ -29,14 +22,6 @@ _STATUTE_CLASSIFICATION_FEATURES = {
     "facts": datasets.Value("string"),
 }
 
-_STATUTE_CLASSIFICATION_PLUS_FEATURES = {
-    "id": datasets.Value("int64"),
-    "casetype": datasets.Value("string"),
-    "casename": datasets.Value("string"),
-    "statutes": datasets.features.Sequence(datasets.Value("string")),
-    "facts": datasets.Value("string"),
-}
-
 _LJP_CRIMINAL = {
     "id": datasets.Value("int64"),
     "casetype": datasets.Value("string"),
@@ -99,12 +84,6 @@ _SUMMARIZATION_FEATURES = {
     "precedent": datasets.Value("string"),
 }
 
-_SUMMARIZATION_PLUS_FEATURES = {
-    "id": datasets.Value("int64"),
-    "summary": datasets.Value("string"),
-    "precedent": datasets.Value("string"),
-}
-
 _PRECEDENT_CORPUS_FEATURES = {
     "id": datasets.Value("int64"),
     "precedent": datasets.Value("string"),