fix: lint error

server/types/app.go

@@ -15,7 +15,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/server/api"
 	"github.com/cosmos/cosmos-sdk/server/config"
-	serverconfig "github.com/cosmos/cosmos-sdk/server/config"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
@@ -70,7 +69,7 @@ type (
 
 	// AppCreator is a function that allows us to lazily initialize an
 	// application using various configurations.
-	AppCreator func(log.Logger, dbm.DB, io.Writer, serverconfig.Config, string, AppOptions) Application
+	AppCreator func(log.Logger, dbm.DB, io.Writer, config.Config, string, AppOptions) Application
 
 	// ModuleInitFlags takes a start command and adds modules specific init flags.
 	ModuleInitFlags func(startCmd *cobra.Command)

x/upgrade/keeper/keeper.go

@@ -60,28 +60,6 @@ func (k Keeper) SetUpgradeHandler(name string, upgradeHandler types.UpgradeHandl
 	k.upgradeHandlers[name] = upgradeHandler
 }
 
-// setProtocolVersion sets the protocol version to state
-func (k Keeper) setProtocolVersion(ctx sdk.Context, v uint64) {
-	store := ctx.KVStore(k.storeKey)
-	versionBytes := make([]byte, 8)
-	binary.BigEndian.PutUint64(versionBytes, v)
-	store.Set([]byte{types.ProtocolVersionByte}, versionBytes)
-}
-
-// getProtocolVersion gets the protocol version from state
-func (k Keeper) getProtocolVersion(ctx sdk.Context) uint64 {
-	store := ctx.KVStore(k.storeKey)
-	ok := store.Has([]byte{types.ProtocolVersionByte})
-	if ok {
-		pvBytes := store.Get([]byte{types.ProtocolVersionByte})
-		protocolVersion := binary.BigEndian.Uint64(pvBytes)
-
-		return protocolVersion
-	}
-	// default value
-	return 0
-}
-
 // SetModuleVersionMap saves a given version map to state
 func (k Keeper) SetModuleVersionMap(ctx sdk.Context, vm module.VersionMap) {
 	if len(vm) > 0 {

x/upgrade/types/keys.go

@@ -23,9 +23,6 @@ const (
 	// VersionMapByte is a prefix to look up module names (key) and versions (value)
 	VersionMapByte = 0x2
 
-	// ProtocolVersionByte is a prefix to look up Protocol Version
-	ProtocolVersionByte = 0x3
-
 	// KeyUpgradedIBCState is the key under which upgraded ibc state is stored in the upgrade store
 	KeyUpgradedIBCState = "upgradedIBCState"