Delete old duckdb index files

v1.0/labelled_dev/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:449937ca71980722172f00266332124ba9e1294cd5359099234276adac21a6a6
-size 5255168

v1.0/paper_dev/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:66a8fed7398caa2824f3dae4ba74af4c5f4bdf71397739cf009c4e76f459ca4b
-size 2895872

v1.0/paper_test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d0ffc65b16af50ef5808836880918a131fc860d148cc7d543dd235530cd944af
-size 2895872

v1.0/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:bea084d824edb6f55c7089be7df612cfca8be3468013a0dfadcceea3da4e3bf5
-size 30683136

v1.0/unlabelled_dev/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4315f098b190766ddbe3806aa4d43551dd40fe1cee14c9196f2b85f319213f99
-size 2109440

v1.0/unlabelled_test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d270e332243c5a9ee1a291b58c8f41304b97453fc1e22d5d5a25c8c255aaa88f
-size 2109440

v2.0/validation/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:518e3e2c0037127eadc38886466abf9cf6bc7a4715365193339f40f33885e1c5
-size 1323008

wiki_pages/partial-wikipedia_pages/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:16f5e61c0e5bff08bfd3e59a3811cbe9b98edc607af13fc69c65248130bd07ef
-size 12972732416