diff --git a/x/sudo/module.go b/x/sudo/module.go
index 41102391d..f2acb506a 100644
--- a/x/sudo/module.go
+++ b/x/sudo/module.go
@@ -11,7 +11,6 @@ import (
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
-	"github.com/gorilla/mux"
 	"github.com/grpc-ecosystem/grpc-gateway/runtime"
 	"github.com/spf13/cobra"
 
@@ -48,12 +47,8 @@ func (AppModuleBasic) RegisterInterfaces(interfaceRegistry codectypes.InterfaceR
 	pb.RegisterInterfaces(interfaceRegistry)
 }
 
-func (AppModuleBasic) RegisterCodec(aminoCodec *codec.LegacyAmino) {
-	pb.RegisterCodec(aminoCodec)
-}
-
 func (AppModuleBasic) RegisterLegacyAminoCodec(aminoCodec *codec.LegacyAmino) {
-	pb.RegisterCodec(aminoCodec)
+	pb.RegisterLegacyAminoCodec(aminoCodec)
 }
 
 // DefaultGenesis returns default genesis state as raw bytes for the module.
@@ -72,10 +67,6 @@ func (AppModuleBasic) ValidateGenesis(
 	return genState.Validate()
 }
 
-// RegisterRESTRoutes registers the capability module's REST service handlers.
-func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Router) {
-}
-
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
 func (AppModuleBasic) RegisterGRPCGatewayRoutes(
 	clientCtx client.Context, mux *runtime.ServeMux,
@@ -121,9 +112,6 @@ func (am AppModule) Name() string {
 	return am.AppModuleBasic.Name()
 }
 
-// QuerierRoute returns the capability module's query routing key.
-func (AppModule) QuerierRoute() string { return pb.QuerierRoute }
-
 // RegisterServices registers a GRPC query service to respond to the
 // module-specific GRPC queries.
 func (am AppModule) RegisterServices(cfg module.Configurator) {
diff --git a/x/sudo/pb/codec.go b/x/sudo/pb/codec.go
index 9e0081502..e80538803 100644
--- a/x/sudo/pb/codec.go
+++ b/x/sudo/pb/codec.go
@@ -7,7 +7,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/types/msgservice"
 )
 
-func RegisterCodec(cdc *codec.LegacyAmino) {
+func RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
 	cdc.RegisterConcrete(&MsgEditSudoers{}, "sudo/edit_sudoers", nil)
 }
 
@@ -22,6 +22,5 @@ func RegisterInterfaces(registry cdctypes.InterfaceRegistry) {
 }
 
 var (
-	Amino     = codec.NewLegacyAmino()
 	ModuleCdc = codec.NewProtoCodec(cdctypes.NewInterfaceRegistry())
 )