Remove episode 49 samples - fix indexing error

data/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:be5701fd66078b15569fddea9aa83e20ab548b3f2896ee73ebc99e1a7a6183e7
-size 960859
+oid sha256:d84f97b73c01c624a2500f078ca148799ce0facf57d38511e23e9023f4defbab
+size 671583