removed unnecessary dbFname config value

src/Mtlstats/Config.hs

@@ -33,10 +33,6 @@ maxFunKeys = 9
 appName :: String
 appName = "mtlstats"
 
--- | The database filename
-dbFname :: String
-dbFname = "database.json"
-
 -- | The maximum number of assists
 maxAssists :: Int
 maxAssists = 2