Delete old duckdb index files

pairs/test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:3ccc89f4580ef2b7512c23eec8a9698ecda77a54fafdeefb50c214885e8c62dd
-size 1060864

pairs/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:18493de652959cf9294bf0bca2ba67661442e3f89cf2291173989996bf4b9c9a
-size 1060864

pairs/valid/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:779fe4417871650e249d079bf25785ffce117fc392675559ddef8535ab89273e
-size 1060864

source/LaBSE_emb/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:3212e1648c530ee107ac90fea63829dbd35fb43085f4d99aa7940d14fbd23281
-size 770453504

source/ent_ids/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f8c7849372032a40eef3b9dc5cc362a7c9103ddab321fa35b7f8469b717a320f
-size 6041600

source/rel_triples_id/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:2e849afa0ad46f77fd8348095300c2ddb686b5e7141ddddaf289159e46d14f40
-size 5517312

target/LaBSE_emb/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:295e940357e0027ea8d0d5f1aa3fee854b5a1207a30b93aeb3011e1f145ad1b6
-size 770453504

target/ent_ids/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:11105361ed6ff5627271fd57c81892ece21338a7c464416140ad638cc5ec6d08
-size 6303744

target/rel_triples_id/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b9e9c3d08c1bb5ab49ffa24f6a0d98249b197b930fcbfdbed5c679f741ef5a17
-size 5779456