Prefer sending tx_bytes to Simulate gRPC endpoint (#8926)

* First run

* Remove dead code

* Make test pass

* Proto gen

* Fix lint

* Add changelog

* Fix tests

* Fix test

* Update x/auth/tx/service.go

Co-authored-by: Marie Gauthier <marie.gauthier63@gmail.com>

* Remove protoTxProvider

* Add grpc-gateway test

* Add comment

* move to api breaking

* lesser diff

* remove conflict

* empty commit to rerun CI

* empty commit to rerun CI

Co-authored-by: Marie Gauthier <marie.gauthier63@gmail.com>
Co-authored-by: Alessio Treglia <alessio@tendermint.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

simapp/simd/cmd/root.go

@@ -25,7 +25,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/snapshots"
 	"github.com/cosmos/cosmos-sdk/store"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	authclient "github.com/cosmos/cosmos-sdk/x/auth/client"
 	authcmd "github.com/cosmos/cosmos-sdk/x/auth/client/cli"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 	vestingcli "github.com/cosmos/cosmos-sdk/x/auth/vesting/client/cli"
@@ -66,8 +65,6 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 }
 
 func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig) {
-	authclient.Codec = encodingConfig.Marshaler
-
 	rootCmd.AddCommand(
 		genutilcli.InitCmd(simapp.ModuleBasics, simapp.DefaultNodeHome),
 		genutilcli.CollectGenTxsCmd(banktypes.GenesisBalancesIterator{}, simapp.DefaultNodeHome),