refactor(store/v2)!: simplify storage (#22683)

tests/integration/accounts/base_account_test.go

@@ -51,12 +51,14 @@ func TestBaseAccount(t *testing.T) {
 }
 
 func sendTx(t *testing.T, ctx sdk.Context, app *simapp.SimApp, sender []byte, msg sdk.Msg) {
+	t.Helper()
 	tx := sign(t, ctx, app, sender, privKey, msg)
 	_, _, err := app.SimDeliver(app.TxEncode, tx)
 	require.NoError(t, err)
 }
 
 func sign(t *testing.T, ctx sdk.Context, app *simapp.SimApp, from sdk.AccAddress, privKey cryptotypes.PrivKey, msg sdk.Msg) sdk.Tx {
+	t.Helper()
 	r := rand.New(rand.NewSource(0))
 
 	accNum, err := app.AccountsKeeper.AccountByNumber.Get(ctx, from)
@@ -81,12 +83,14 @@ func sign(t *testing.T, ctx sdk.Context, app *simapp.SimApp, from sdk.AccAddress
 }
 
 func bechify(t *testing.T, app *simapp.SimApp, addr []byte) string {
+	t.Helper()
 	bech32, err := app.AuthKeeper.AddressCodec().BytesToString(addr)
 	require.NoError(t, err)
 	return bech32
 }
 
 func fundAccount(t *testing.T, app *simapp.SimApp, ctx sdk.Context, addr sdk.AccAddress, amt string) {
+	t.Helper()
 	require.NoError(t, testutil.FundAccount(ctx, app.BankKeeper, addr, coins(t, amt)))
 }
 

tests/integration/accounts/bundler_test.go

@@ -209,6 +209,7 @@ func TestMsgServer_ExecuteBundle(t *testing.T) {
 }
 
 func makeTx(t *testing.T, msg gogoproto.Message, sig []byte, xt *account_abstractionv1.TxExtension) []byte {
+	t.Helper()
 	anyMsg, err := codectypes.NewAnyWithValue(msg)
 	require.NoError(t, err)
 

tests/integration/v2/auth/app_test.go

@@ -22,7 +22,6 @@ import (
 	_ "cosmossdk.io/x/consensus" // import as blank for app wiring
 	_ "cosmossdk.io/x/staking"   // import as blank for app wirings
 
-	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/tests/integration/v2"
 	"github.com/cosmos/cosmos-sdk/testutil/configurator"
 	_ "github.com/cosmos/cosmos-sdk/x/auth" // import as blank for app wiring
@@ -35,7 +34,6 @@ import (
 type suite struct {
 	app *integration.App
 
-	cdc codec.Codec
 	ctx context.Context
 
 	authKeeper     authkeeper.AccountKeeper