fix: remove packet data remarshaling (#8060)

modules/apps/transfer/types/packet.go

@@ -1,7 +1,6 @@
 package types
 
 import (
-	"bytes"
 	"encoding/json"
 	"errors"
 	"strings"
@@ -264,13 +263,6 @@ func UnmarshalPacketData(bz []byte, ics20Version string, encoding string) (Inter
 		// We should never get here, as we manually constructed the type at the beginning of the file
 		return InternalTransferRepresentation{}, errorsmod.Wrapf(ibcerrors.ErrInvalidType, "cannot convert proto message into FungibleTokenPacketData")
 	}
-	bz2, err := MarshalPacketData(*datav1, ics20Version, encoding)
-	if err != nil {
-		return InternalTransferRepresentation{}, errorsmod.Wrapf(ibcerrors.ErrInvalidType, "cannot marshal transfer packet data: %s", err.Error())
-	}
-	if !bytes.Equal(bz, bz2) {
-		return InternalTransferRepresentation{}, errorsmod.Wrapf(ibcerrors.ErrInvalidType, "marshaled bytes are not equal: got %X, expected %X", bz2, bz)
-	}
 	// The call to ValidateBasic for V1 is done inside PacketDataV1toV2.
 	return PacketDataV1ToV2(*datav1)
 }