Delete old duckdb index files

encoding/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0483b91af40b6c7c1293e3414e01f4c4282581391e475a1b614ab86481d9f83a
-size 1060864

priors-prediction-no-race/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:2a9dda6eb57675d34b37bc93092f56faac3cb350319c256b90b7ae39d52a70de
-size 1060864

priors-prediction/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a1ad94027a343153421c160278bd9cfa42d6282319df34353986fd331a7350de
-size 1323008

race/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a1f1e61de93b658a26a825f39f582e923c8823ed3db030c94a2a5baab383910b
-size 1060864

two-years-recidividity-no-race/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f5212d4333640c3d7b66d299f8a13157b41a4154dbead24b81f7f608c8aff327
-size 1060864

two-years-recidividity/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:241c6b13d0b01b2bd4b0e63c59389384f01f695c31a49ccc4cc4c5b4ba817edd
-size 1323008