Remove obsolete shards after LeRobot v3 sync

data/chunk-000/file-004.parquet

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-version https://git-lfs.github.com/spec/v1
-oid sha256:ba0ed1045c1034dac5f16795c9ffc3c0cfa37af131781c71c30f2ddabfec608d
-size 60776881

data/chunk-000/file-005.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:8a8be660451bf22a84ba7e86b5ef6733c20b037ea9317fe38e60dbcf31fef04b
-size 65160312

data/chunk-000/file-006.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:9e24af2eff70861ea5777bb104a18d358b6869bd1081fb5e380e9502c2fb437e
-size 60756882

data/chunk-000/file-007.parquet

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-version https://git-lfs.github.com/spec/v1
-oid sha256:7ddaecd471da28f25ccbca3ed9bb9562e85b5ad3f94741197b99e23449b3bdd6
-size 65328158

meta/episodes/chunk-000/file-002.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:423698fb449ab60053c8ceb9b307ac88e3c688a86e50f92a274c57835f26d13f
-size 60823085

meta/episodes/chunk-000/file-003.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:29cd634e07ca35fab90b6c6ab6c062e41ea471dc75350128149fe95fac7bab14
-size 60784575