Fully Deprecate Vectorized HTR Flag (#12148)

* cleanup

* gaz

* fix tests

* remove unused hasher

* gaz

* fix last one

* fix tests

* fmt

proto/migration/BUILD.bazel

@@ -13,7 +13,6 @@ go_library(
         "//beacon-chain/state:go_default_library",
         "//config/fieldparams:go_default_library",
         "//consensus-types/interfaces:go_default_library",
-        "//crypto/hash:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//encoding/ssz:go_default_library",
         "//proto/engine/v1:go_default_library",

proto/migration/v1alpha1_to_v2.go

@@ -4,7 +4,6 @@ import (
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/prysm/v3/beacon-chain/state"
 	fieldparams "github.com/prysmaticlabs/prysm/v3/config/fieldparams"
-	"github.com/prysmaticlabs/prysm/v3/crypto/hash"
 	"github.com/prysmaticlabs/prysm/v3/encoding/bytesutil"
 	"github.com/prysmaticlabs/prysm/v3/encoding/ssz"
 	enginev1 "github.com/prysmaticlabs/prysm/v3/proto/engine/v1"
@@ -446,11 +445,7 @@ func V1Alpha1BeaconBlockCapellaToV2Blinded(v1alpha1Block *ethpbalpha.BeaconBlock
 		return nil, errors.Wrapf(err, "could not calculate transactions root")
 	}
 
-	withdrawalsRoot, err := ssz.WithdrawalSliceRoot(
-		hash.CustomSHA256Hasher(),
-		v1alpha1Block.Body.ExecutionPayload.Withdrawals,
-		fieldparams.MaxWithdrawalsPerPayload,
-	)
+	withdrawalsRoot, err := ssz.WithdrawalSliceRoot(v1alpha1Block.Body.ExecutionPayload.Withdrawals, fieldparams.MaxWithdrawalsPerPayload)
 	if err != nil {
 		return nil, errors.Wrapf(err, "could not calculate transactions root")
 	}