Remove unnecessary deriving Typeable from generated Haskell code #503
Description
BNFC currently generates deriving (C.Typeable) clauses, but since GHC 7.10 all instances of Typeable are autoderived.
Recent versions of GHC have now started warning about this.
It looks like BNFC only supports GHC 8.10 and later so these deriving statements should probably be removed?