diff --git a/x/mint/keeper/querier.go b/x/mint/keeper/querier.go
deleted file mode 100644
index 4e6888b..0000000
--- a/x/mint/keeper/querier.go
+++ /dev/null
@@ -1,64 +0,0 @@
-package keeper
-
-import (
-	abci "github.com/tendermint/tendermint/abci/types"
-
-	"github.com/celestiaorg/celestia-app/x/mint/types"
-	"github.com/cosmos/cosmos-sdk/codec"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-
-	"cosmossdk.io/errors"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-)
-
-// NewQuerier returns a minting Querier handler.
-func NewQuerier(k Keeper, legacyQuerierCdc *codec.LegacyAmino) sdk.Querier {
-	return func(ctx sdk.Context, path []string, _ abci.RequestQuery) ([]byte, error) {
-		switch path[0] {
-		case types.QueryInflationRate:
-			return queryInflationRate(ctx, k, legacyQuerierCdc)
-
-		case types.QueryAnnualProvisions:
-			return queryAnnualProvisions(ctx, k, legacyQuerierCdc)
-
-		case types.QueryGenesisTime:
-			return queryGenesisTime(ctx, k, legacyQuerierCdc)
-
-		default:
-			return nil, errors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown query path: %s", path[0])
-		}
-	}
-}
-
-func queryInflationRate(ctx sdk.Context, k Keeper, legacyQuerierCdc *codec.LegacyAmino) ([]byte, error) {
-	minter := k.GetMinter(ctx)
-
-	res, err := codec.MarshalJSONIndent(legacyQuerierCdc, minter.InflationRate)
-	if err != nil {
-		return nil, errors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
-	}
-
-	return res, nil
-}
-
-func queryAnnualProvisions(ctx sdk.Context, k Keeper, legacyQuerierCdc *codec.LegacyAmino) ([]byte, error) {
-	minter := k.GetMinter(ctx)
-
-	res, err := codec.MarshalJSONIndent(legacyQuerierCdc, minter.AnnualProvisions)
-	if err != nil {
-		return nil, errors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
-	}
-
-	return res, nil
-}
-
-func queryGenesisTime(ctx sdk.Context, k Keeper, legacyQuerierCdc *codec.LegacyAmino) ([]byte, error) {
-	genesisTime := k.GetGenesisTime(ctx).GenesisTime
-
-	res, err := codec.MarshalJSONIndent(legacyQuerierCdc, genesisTime)
-	if err != nil {
-		return nil, errors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
-	}
-
-	return res, nil
-}
diff --git a/x/mint/keeper/querier_test.go b/x/mint/keeper/querier_test.go
deleted file mode 100644
index 7e7562d..0000000
--- a/x/mint/keeper/querier_test.go
+++ /dev/null
@@ -1,104 +0,0 @@
-package keeper_test
-
-import (
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-	"github.com/stretchr/testify/suite"
-	abci "github.com/tendermint/tendermint/abci/types"
-	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
-
-	"github.com/celestiaorg/celestia-app/app"
-	testutil "github.com/celestiaorg/celestia-app/test/util"
-	keep "github.com/celestiaorg/celestia-app/x/mint/keeper"
-	"github.com/celestiaorg/celestia-app/x/mint/types"
-	"github.com/cosmos/cosmos-sdk/codec"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-)
-
-type MintKeeperTestSuite struct {
-	suite.Suite
-
-	app              *app.App
-	ctx              sdk.Context
-	legacyQuerierCdc *codec.AminoCodec
-}
-
-func (suite *MintKeeperTestSuite) SetupTest() {
-	testApp, _ := testutil.SetupTestAppWithGenesisValSet(app.DefaultConsensusParams())
-	ctx := testApp.NewContext(true, tmproto.Header{})
-
-	legacyQuerierCdc := codec.NewAminoCodec(testApp.LegacyAmino())
-
-	suite.app = testApp
-	suite.ctx = ctx
-	suite.legacyQuerierCdc = legacyQuerierCdc
-}
-
-func (suite *MintKeeperTestSuite) TestNewQuerier(t *testing.T) {
-	app, ctx, legacyQuerierCdc := suite.app, suite.ctx, suite.legacyQuerierCdc
-	querier := keep.NewQuerier(app.MintKeeper, legacyQuerierCdc.LegacyAmino)
-
-	query := abci.RequestQuery{
-		Path: "",
-		Data: []byte{},
-	}
-
-	_, err := querier(ctx, []string{types.QueryInflationRate}, query)
-	require.NoError(t, err)
-
-	_, err = querier(ctx, []string{types.QueryAnnualProvisions}, query)
-	require.NoError(t, err)
-
-	_, err = querier(ctx, []string{types.QueryGenesisTime}, query)
-	require.NoError(t, err)
-
-	_, err = querier(ctx, []string{"foo"}, query)
-	require.Error(t, err)
-}
-
-func (suite *MintKeeperTestSuite) TestQueryInflationRate(t *testing.T) {
-	app, ctx, legacyQuerierCdc := suite.app, suite.ctx, suite.legacyQuerierCdc
-	querier := keep.NewQuerier(app.MintKeeper, legacyQuerierCdc.LegacyAmino)
-
-	var inflation sdk.Dec
-
-	res, sdkErr := querier(ctx, []string{types.QueryInflationRate}, abci.RequestQuery{})
-	require.NoError(t, sdkErr)
-
-	err := app.LegacyAmino().UnmarshalJSON(res, &inflation)
-	require.NoError(t, err)
-
-	require.Equal(t, app.MintKeeper.GetMinter(ctx).InflationRate, inflation)
-}
-
-func (suite *MintKeeperTestSuite) TestQueryAnnualProvisions(t *testing.T) {
-	app, ctx, legacyQuerierCdc := suite.app, suite.ctx, suite.legacyQuerierCdc
-	querier := keep.NewQuerier(app.MintKeeper, legacyQuerierCdc.LegacyAmino)
-
-	var annualProvisions sdk.Dec
-
-	res, sdkErr := querier(ctx, []string{types.QueryAnnualProvisions}, abci.RequestQuery{})
-	require.NoError(t, sdkErr)
-
-	err := app.LegacyAmino().UnmarshalJSON(res, &annualProvisions)
-	require.NoError(t, err)
-
-	require.Equal(t, app.MintKeeper.GetMinter(ctx).AnnualProvisions, annualProvisions)
-}
-
-func (suite *MintKeeperTestSuite) TestQueryGenesisTime(t *testing.T) {
-	app, ctx, legacyQuerierCdc := suite.app, suite.ctx, suite.legacyQuerierCdc
-	querier := keep.NewQuerier(app.MintKeeper, legacyQuerierCdc.LegacyAmino)
-
-	var genesisTime *time.Time
-
-	res, sdkErr := querier(ctx, []string{types.QueryGenesisTime}, abci.RequestQuery{})
-	require.NoError(t, sdkErr)
-
-	err := app.LegacyAmino().UnmarshalJSON(res, &genesisTime)
-	require.NoError(t, err)
-
-	require.Equal(t, app.MintKeeper.GetGenesisTime(ctx).GenesisTime, genesisTime)
-}
diff --git a/x/mint/module.go b/x/mint/module.go
index c2ff8b1..5aa4fa7 100644
--- a/x/mint/module.go
+++ b/x/mint/module.go
@@ -109,9 +109,10 @@ func (AppModule) QuerierRoute() string {
 	return types.QuerierRoute
 }
 
-// LegacyQuerierHandler returns the mint module sdk.Querier.
-func (am AppModule) LegacyQuerierHandler(legacyQuerierCdc *codec.LegacyAmino) sdk.Querier {
-	return keeper.NewQuerier(am.keeper, legacyQuerierCdc)
+// LegacyQuerierHandler returns nil because this module doesn't support the
+// legacy querier or Amino codec.
+func (am AppModule) LegacyQuerierHandler(_ *codec.LegacyAmino) sdk.Querier {
+	return nil
 }
 
 // RegisterServices registers a gRPC query service to respond to the
diff --git a/x/mint/types/codec.go b/x/mint/types/codec.go
deleted file mode 100644
index a7067d9..0000000
--- a/x/mint/types/codec.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package types
-
-import (
-	"github.com/cosmos/cosmos-sdk/codec"
-	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
-)
-
-var amino = codec.NewLegacyAmino()
-
-func init() {
-	cryptocodec.RegisterCrypto(amino)
-	amino.Seal()
-}