Clean up old test data

data/train-00000-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d483af5e76ff53be1c44043c92e54a4c921a20a8349c53f49227b602c5dc860b
-size 119525822

data/train-00001-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4af78cf36f926a08c9ea48f88433412c9ce8a1ec7ba7ed0567a400bb21c13fe8
-size 151999995

data/train-00002-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0d9739b879f4b5503e5f9aff1aa1a85a9ee86c4d455097ce7825ed129781ef97
-size 122082757

data/train-00003-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:75aa3dd7a499f2570d99c0a0e3ec17ee64c205b15d8f53ff8ccce1df6e35dd61
-size 239582592

data/train-00004-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:69159a02f6f7f36f151fdcf95b265a2c7783175690466575a3b74b340cd31647
-size 199317550

data/train-00005-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:417683ec232630339df22be3ff5104cccf6f1a61fdf68f4bff98c5c072ab00b6
-size 175279145

data/train-00006-of-00007.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:dd8206bed0d81f9bd04cd2bed8cc6489b0ba485c803cab280cc1d5e0c7899baa
-size 143068545