Delete old duckdb index files

default/test/index.duckdb

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-version https://git-lfs.github.com/spec/v1
-oid sha256:9e236aef94722d0495f6c6cdb5f4b4e95eba83986fb549e0226a55164ca12801
-size 79966208

default/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6d0963e789c8024f1e2cbfa38e0bd4ae9036c280b32b3a5758ff44ef07d17409
-size 80752640

embedding_all-MiniLM-L12-v2/test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:86c62c9afa0b12e530b8863c01711b30716e56b91adc042c00519ca947b2f651
-size 39333888

embedding_all-MiniLM-L12-v2/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:782a0726d2aea8e2d15d86d8b7c102d9e8dd81d62145dd97b9c38267e34724c2
-size 39333888

embedding_all-mpnet-base-v2/test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b740c20eb032a4aa8a4d701e9f3bd7cbbdf5c7a596090245d44abea95f071b7c
-size 77869056

embedding_all-mpnet-base-v2/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:5c8ea27726fd535c881d81bf3d957d7af83d31fdec27edf47d9373cfd1c89fb5
-size 77869056

embedding_multi-qa-mpnet-base-dot-v1/test/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:af2f64fa9d77cb678ef3351761856016e03033dd5eb01d7dc9657f63d3cbd882
-size 77869056

embedding_multi-qa-mpnet-base-dot-v1/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d226bb69c24aead2c07cfad0fded3170640a201f137ace1ebd51a1cb4bcd14f0
-size 77869056