Remove 4 old tz_sw_bunge + 2 old v5 shards (superseded by larger May 6 22:24+ Bunge re-prep + 3-shard v5 re-prep).

data/sw_tz/tz_sw_bunge-test-00000.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:22b26af712b8365f9ff3cc0a5d05182d0fa3cb9d7b8b9ad1a9174d9436b639aa
-size 62744276

data/sw_tz/tz_sw_bunge-train-00000.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d2d0b7afc20d94b1974dc1db16225941d6a87597d460a8303e24e2c7a022f565
-size 526741626

data/sw_tz/tz_sw_bunge-train-00001.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:91463a7a1c75e27a779d29eb5efc0042ce5db65280685d2bed2c7f20ec16cfc4
-size 525689749

data/sw_tz/tz_sw_bunge-train-00002.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6641cd423aa67058d2c65baa1f23442531a6ebe91e9da07c6b300ac51c7aece6
-size 159948920

data/sw_tz/tz_sw_znz-test-00018.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f1f6c49215546ceb6fcfb3e930eb1978d3b6412b15e12e4d9ec56467ad8b1339
-size 25351526

data/sw_tz/tz_sw_znz-train-00020.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:22ce15d169a30a2bef04ee97df552e438ebdac23b6a3026ca7b0b56e3f260490
-size 472770405