chore(relay): remove unused utility

mev-boost-relay/services/api/types.go

@@ -4,8 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"slices"
-	"sort"
 
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	gethCommon "github.com/ethereum/go-ethereum/common"
@@ -51,43 +49,3 @@ type (
 		Tx    *types.Transaction
 	}
 )
-
-// ParseConstraintsDecoded receives a map of constraints and
-// - creates a slice of constraints sorted by index
-// - creates a slice of constraints without index sorted by nonce and hash
-// Returns the concatenation of the slices
-func ParseConstraintsDecoded(constraints HashToConstraintDecoded) []*ConstraintDecoded {
-	// Here we initialize and track the constraints left to be executed along
-	// with their gas requirements
-	constraintsOrderedByIndex := make([]*ConstraintDecoded, 0, len(constraints))
-	constraintsWithoutIndex := make([]*ConstraintDecoded, 0, len(constraints))
-
-	for _, constraint := range constraints {
-		if constraint.Index == nil {
-			constraintsWithoutIndex = append(constraintsWithoutIndex, constraint)
-		} else {
-			constraintsOrderedByIndex = append(constraintsOrderedByIndex, constraint)
-		}
-	}
-
-	// Sorts the constraints by index ascending
-	sort.Slice(constraintsOrderedByIndex, func(i, j int) bool {
-		// By assumption, all constraints here have a non-nil index
-		return *constraintsOrderedByIndex[i].Index < *constraintsOrderedByIndex[j].Index
-	})
-
-	// Sorts the unindexed constraints by nonce ascending and by hash
-	sort.Slice(constraintsWithoutIndex, func(i, j int) bool {
-		iNonce := constraintsWithoutIndex[i].Tx.Nonce()
-		jNonce := constraintsWithoutIndex[j].Tx.Nonce()
-		// Sort by hash
-		if iNonce == jNonce {
-			return constraintsWithoutIndex[i].Tx.Hash().Cmp(constraintsWithoutIndex[j].Tx.Hash()) < 0
-		}
-		return iNonce < jNonce
-	})
-
-	constraintsConcat := slices.Concat(constraintsOrderedByIndex, constraintsWithoutIndex)
-
-	return constraintsConcat
-}