hydra-plutus: Remove unused functions (#1699)

These are no longer used.

hydra-plutus/src/Hydra/Contract/Head.hs

@@ -22,7 +22,6 @@ import Hydra.Data.Party (Party (vkey))
 import Hydra.Plutus.Extras (ValidatorType, scriptValidatorHash, wrapValidator)
 import PlutusLedgerApi.Common (SerialisedScript, serialiseCompiledCode)
 import PlutusLedgerApi.V1.Time (fromMilliSeconds)
-import PlutusLedgerApi.V1.Value (valueOf)
 import PlutusLedgerApi.V2 (
   Address,
   CurrencySymbol,
@@ -44,8 +43,6 @@ import PlutusLedgerApi.V2 (
   TxOutRef (..),
   UpperBound (..),
   Value (Value),
-  adaSymbol,
-  adaToken,
  )
 import PlutusLedgerApi.V2.Contexts (findOwnInput)
 import PlutusTx (CompiledCode)
@@ -542,18 +539,6 @@ checkFanout ScriptContext{scriptContextTxInfo = txInfo} closedDatum numberOfFano
 -- Helpers
 --------------------------------------------------------------------------------
 
-(&) :: a -> (a -> b) -> b
-(&) = flip ($)
-{-# INLINEABLE (&) #-}
-
-txOutAdaValue :: TxOut -> Integer
-txOutAdaValue o = valueOf (txOutValue o) adaSymbol adaToken
-{-# INLINEABLE txOutAdaValue #-}
-
-txInfoAdaFee :: TxInfo -> Integer
-txInfoAdaFee tx = valueOf (txInfoFee tx) adaSymbol adaToken
-{-# INLINEABLE txInfoAdaFee #-}
-
 makeContestationDeadline :: ContestationPeriod -> ScriptContext -> POSIXTime
 makeContestationDeadline cperiod ScriptContext{scriptContextTxInfo} =
   case ivTo (txInfoValidRange scriptContextTxInfo) of

hydra-plutus/src/Hydra/ScriptContext.hs

@@ -28,7 +28,6 @@ import PlutusLedgerApi.V2 (
   Value,
  )
 import PlutusTx (makeIsDataIndexed)
-import PlutusTx.AssocMap (lookup)
 
 -- * Tx info
 
@@ -99,11 +98,6 @@ findOwnInput ScriptContext{scriptContextTxInfo = TxInfo{txInfoInputs}, scriptCon
 findOwnInput _ = Nothing
 {-# INLINEABLE findOwnInput #-}
 
--- | Find the data corresponding to a data hash, if there is one
-findDatum :: DatumHash -> TxInfo -> Maybe Datum
-findDatum dsh TxInfo{txInfoData} = lookup dsh txInfoData
-{-# INLINEABLE findDatum #-}
-
 -- | Given a UTXO reference and a transaction (`TxInfo`), resolve it to one of the transaction's inputs (`TxInInfo`).
 findTxInByTxOutRef :: TxOutRef -> TxInfo -> Maybe TxInInfo
 findTxInByTxOutRef outRef TxInfo{txInfoInputs} =

weeder.toml

@@ -1,2 +1,2 @@
-roots = [ "^Main.main$" ]
+roots = [ "^Main.main$" ,"^Spec.main$"  ]
 type-class-roots = true