Delete old duckdb index files

extraction/test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:56e2461d870bc8179065059c6da02fb42d94a02b44418a1f901fdd0f6cb9bb6b
-size 101199872

extraction/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:5f412c0e6205eefff12690f6e30d5a8d2ffe856e54ff858bc60ca209acb5257f
-size 1591488512

extraction/validation/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0cb0594825f376c3e2404e0de8260bb0fcfbdb7f62e548ad2023fd2dfd5915e8
-size 62402560

generation/test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:844055b66a89be861d050c1411b8c6dfa2895bf7dbba7bc2741fbbb0b1a7d9a6
-size 100151296

generation/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f519ea5e0dc511d4cb8f781c0b358e6059a6aa93ecdfb28540f70afe3af15b92
-size 1568419840

generation/validation/index.duckdb

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-version https://git-lfs.github.com/spec/v1
-oid sha256:38476711cd466e7dc1e169302969137bb888b57d6b5d51a9ad76a3b1c766483d
-size 60305408

raw/test/index.duckdb

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-version https://git-lfs.github.com/spec/v1
-oid sha256:504e8de6ef510c77383d8ccba5eda21d3ca55844a1d76e064c5b5277f66ae587
-size 222310400

raw/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6b3acab9ecc345dccc608a78883f94422ef5a5da95bdd305864a83391f276308
-size 3292803072

raw/validation/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b63196cf7c5df1d688b5637d3b76e8e593697d8132d698fd74a48f66ce8fff24
-size 124792832