Remove pragma for ghc908

Author: aniketd

eras/shelley/impl/src/Cardano/Ledger/Shelley/Rules/Tick.hs

@@ -14,9 +14,6 @@
 {-# LANGUAGE TypeOperators #-}
 {-# LANGUAGE UndecidableInstances #-}
 {-# OPTIONS_GHC -Wno-orphans #-}
-#if __GLASGOW_HASKELL__ >= 908
-{-# OPTIONS_GHC -Wno-redundant-constraints #-}
-#endif
 
 module Cardano.Ledger.Shelley.Rules.Tick (
   ShelleyTICK,