removing bad test file (location is on land)

metadata/super@whale.org/e6ce30c3f403d98067e45101eb4c3c3f.json

@@ -1 +0,0 @@
-{"image_filename": "img_000.jpg", "image_md5": "e6ce30c3f403d98067e45101eb4c3c3f", "latitude": "4.5", "longitude": "40", "author_email": "super@whale.org", "image_datetime_raw": null, "date": "2025-03-13", "time": "19:23:19", "timezone": "+0100", "selected_class": "beluga", "top_prediction": "beluga", "class_overriden": false}