chore(share): remove unused ShareWithProof (#3893)

share/share.go

@@ -2,9 +2,6 @@ package share
 
 import (
 	"github.com/celestiaorg/celestia-app/v3/pkg/appconsts"
-	libshare "github.com/celestiaorg/go-square/v2/share"
-	"github.com/celestiaorg/nmt"
-	"github.com/celestiaorg/rsmt2d"
 )
 
 // DefaultRSMT2DCodec sets the default rsmt2d.Codec for shares.
@@ -13,28 +10,3 @@ var DefaultRSMT2DCodec = appconsts.DefaultCodec
 // MaxSquareSize is currently the maximum size supported for unerasured data in
 // rsmt2d.ExtendedDataSquare.
 var MaxSquareSize = appconsts.SquareSizeUpperBound(appconsts.LatestVersion)
-
-// ShareWithProof contains data with corresponding Merkle Proof
-type ShareWithProof struct { //nolint: revive
-	// Share is a full data including namespace
-	libshare.Share
-	// Proof is a Merkle Proof of current share
-	Proof *nmt.Proof
-	// Axis is a type of axis against which the share proof is computed
-	Axis rsmt2d.Axis
-}
-
-// Validate validates inclusion of the share under the given root CID.
-func (s *ShareWithProof) Validate(rootHash []byte, x, y, edsSize int) bool {
-	isParity := x >= edsSize/2 || y >= edsSize/2
-	namespace := libshare.ParitySharesNamespace
-	if !isParity {
-		namespace = s.Share.Namespace()
-	}
-	return s.Proof.VerifyInclusion(
-		NewSHA256Hasher(),
-		namespace.Bytes(),
-		[][]byte{s.Share.ToBytes()},
-		rootHash,
-	)
-}