remove tag from BHDTV config example

Author: L4GSP1KE

data/example-config.py

@@ -53,7 +53,6 @@
             "announce_url": "https://trackerr.bit-hdtv.com/announce",
             #passkey found under https://www.bit-hdtv.com/my.php
             "my_announce_url": "https://trackerr.bit-hdtv.com/passkey/announce",
-            "tag": "BIT-HDTV, 7d"
             # "anon" : "False"
         },
         "PTP" : {