remove unused upgrade code for bombay-11 (#568)

app/app.go

@@ -98,7 +98,6 @@ import (
 	customauth "github.com/terra-money/core/custom/auth"
 	customante "github.com/terra-money/core/custom/auth/ante"
 	customauthrest "github.com/terra-money/core/custom/auth/client/rest"
-	customlegacyauthv040 "github.com/terra-money/core/custom/auth/legacy/v040"
 	customauthsim "github.com/terra-money/core/custom/auth/simulation"
 	customauthtx "github.com/terra-money/core/custom/auth/tx"
 	customauthz "github.com/terra-money/core/custom/authz"
@@ -582,37 +581,8 @@ func NewTerraApp(
 // Name returns the name of the App
 func (app *TerraApp) Name() string { return app.BaseApp.Name() }
 
-// MultiSigPubKeyMigrationPlanName upgrade plan name to fix multisig pubkey migration problem
-const MultiSigPubKeyMigrationPlanName = "multisig-pubkey-migration"
-
-// MultiSigPubKeyMigrationChainID target chain-id to apply multisig pubkey migration fix
-const MultiSigPubKeyMigrationChainID = "bombay-11"
-
 // BeginBlocker application updates every begin block
 func (app *TerraApp) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock {
-
-	// NOTE: this handler is only for bombay-11, due to pubkey migration had problem
-	if ctx.ChainID() == MultiSigPubKeyMigrationChainID {
-		if plan, found := app.UpgradeKeeper.GetUpgradePlan(ctx); found {
-			if plan.Name == MultiSigPubKeyMigrationPlanName && plan.Height == ctx.BlockHeight() {
-				app.UpgradeKeeper.SetUpgradeHandler(MultiSigPubKeyMigrationPlanName, func(ctx sdk.Context, _ upgradetypes.Plan, vm module.VersionMap) (module.VersionMap, error) {
-					var err error
-					app.AccountKeeper.IterateAccounts(ctx, func(account authtypes.AccountI) bool {
-						if account, err = customlegacyauthv040.MigrateAccount(account); err != nil {
-							return true
-						} else if account != nil {
-							app.AccountKeeper.SetAccount(ctx, account)
-						}
-
-						return false
-					})
-
-					return vm, err
-				})
-			}
-		}
-	}
-
 	return app.mm.BeginBlock(ctx, req)
 }