Add missing data statements. (#251)

trackdecoder/trackdecoder.py

@@ -14,6 +14,10 @@ class TrackDecoder(commands.Cog):
     def __init__(self, bot):
         self.bot = bot
 
+    async def red_delete_data_for_user(self, **kwargs):
+        """Nothing to delete"""
+        return
+
     @checks.is_owner()
     @commands.command()
     @commands.guild_only()