Delete old duckdb index files

default/NeuLabTedTalks/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:889bd6ac07f57da37704d4d67375cb35aa720d1f88b5ec128713d8f9479cbab6
-size 27799552

default/QED/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0bd4d93097a527f2aa1726e04a653854fe0ff12bf27e99fc72bbbeb56c6cb392
-size 78655488

default/TED2020/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:58743512d5d6f1a49853dfc679c281f5deb35678cdaabc72ae45f4ce3af8ce83
-size 45625344

default/Tatoeba/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:9c26e5b3751fafe129d1032767ee38c741f3cae5f8e7319199c3336bbcc4618b
-size 1847296

default/combinedtech/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d6348e76daa3b54685bd229f1584047ad9e9ca58b9b2bb35cc174c9efb1d3307
-size 56373248

default/msmarcocollection/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:dbae5c99b46baa23d677badfed2409605a1da6bf3526f60f7a3017bb28b662c9
-size 511193088

default/msmarcoquery/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a133ad9c78f0f0787090944f8082f67fea2305d5fe17902773b293953e6a85f5
-size 59518976

default/tico19/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:03ead3b785c488d455704ef40314888f9b2c682d8ceb6f009846285eb03b47d9
-size 2109440