Remove sw_tz_znz from YAML (deleted orphan)

README.md

@@ -768,12 +768,6 @@ configs:
     - data/sw_tz/tz_sw_znz-train-*.parquet
   - split: test
     path: data/sw_tz/test-*.parquet
-- config_name: sw_tz_znz
-  data_files:
-  - split: train
-    path: data/sw_tz_znz/train-*.parquet
-  - split: test
-    path: data/sw_tz_znz/test-*.parquet
 - config_name: ta_in
   data_files:
   - split: train