acid-state-exts.cabal: Remove bad hs-source-dirs entry
acid-state-exts.cabal: Remove bad hs-source-dirs entry

input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/cardano-sl