refactor: migrate ante hanlders to middlewares (cosmos#10028)

<!--
The default pull request template is for types feat, fix, or refactor.
For other templates, add one of the following parameters to the url:
- template=docs.md
- template=other.md
-->

## Description

Closes: cosmos#9585 

<!-- Add a description of the changes that this PR introduces and the files that
are the most critical to review. -->

---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

app.go

@@ -30,7 +30,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/types/module"
 	"github.com/cosmos/cosmos-sdk/version"
 	"github.com/cosmos/cosmos-sdk/x/auth"
-	"github.com/cosmos/cosmos-sdk/x/auth/ante"
 	authkeeper "github.com/cosmos/cosmos-sdk/x/auth/keeper"
 	authsims "github.com/cosmos/cosmos-sdk/x/auth/simulation"
 	authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
@@ -401,29 +400,20 @@ func NewSimApp(
 }
 
 func (app *SimApp) setTxHandler(txConfig client.TxConfig, indexEventsStr []string) {
-	anteHandler, err := ante.NewAnteHandler(
-		ante.HandlerOptions{
-			AccountKeeper:   app.AccountKeeper,
-			BankKeeper:      app.BankKeeper,
-			SignModeHandler: txConfig.SignModeHandler(),
-			FeegrantKeeper:  app.FeeGrantKeeper,
-			SigGasConsumer:  ante.DefaultSigVerificationGasConsumer,
-		},
-	)
-	if err != nil {
-		panic(err)
-	}
-
 	indexEvents := map[string]struct{}{}
 	for _, e := range indexEventsStr {
 		indexEvents[e] = struct{}{}
 	}
 	txHandler, err := authmiddleware.NewDefaultTxHandler(authmiddleware.TxHandlerOptions{
-		Debug:             app.Trace(),
-		IndexEvents:       indexEvents,
-		LegacyRouter:      app.legacyRouter,
-		MsgServiceRouter:  app.msgSvcRouter,
-		LegacyAnteHandler: anteHandler,
+		Debug:            app.Trace(),
+		IndexEvents:      indexEvents,
+		LegacyRouter:     app.legacyRouter,
+		MsgServiceRouter: app.msgSvcRouter,
+		AccountKeeper:    app.AccountKeeper,
+		BankKeeper:       app.BankKeeper,
+		FeegrantKeeper:   app.FeeGrantKeeper,
+		SignModeHandler:  txConfig.SignModeHandler(),
+		SigGasConsumer:   authmiddleware.DefaultSigVerificationGasConsumer,
 	})
 	if err != nil {
 		panic(err)