Delete old duckdb index files

default/CodeContestsTest/index.duckdb

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-oid sha256:ae5696ec2abcb967530bde73d60d661fed15d549c1b936af1b916140b767b165
-size 47984640

default/PypiCleanTest/index.duckdb

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-version https://git-lfs.github.com/spec/v1
-oid sha256:afcedb5990b7fd61fa3bf577425e9af9ed65eba19009a25932a948817100f174
-size 117452800

default/StarcoderdataJsonTest/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:30d69f43bcd2e8bbd11ea54273a1f84b3059f1d56e065cba4a78bd752e310ec8
-size 22294528

default/StarcoderdataJupyterScriptsDedupFilteredTest/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:27439dcda9c391335424ee073d76dfaa0150e17f5e3da1fe63caf3fbd6fb1c2c
-size 19148800

default/StarcoderdataJupyterStructuredCleanDedupTest/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1a3097fb3dba20372fd82993d2871c5da259ee2458f9c1e68a4fe5c35c5a23dc
-size 17575936

default/StarcoderdataMarkdownTest/index.duckdb

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-version https://git-lfs.github.com/spec/v1
-oid sha256:413537e26cfc823339cba3673c287379327b706b44faed3e3adf0d3d1da3f002
-size 52441088

default/StarcoderdataPythonTest/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:083bc48e72548ab32ff2740c14455923eaf9e7d3b492f35dcc350f124028c208
-size 51130368