From 2d63a9153af78bf8d38d2a3fbddd173e4c664f7a Mon Sep 17 00:00:00 2001
From: marbar3778 <marbar3778@yahoo.com>
Date: Thu, 8 Jul 2021 09:19:18 +0200
Subject: [PATCH] revert changes

---
 baseapp/baseapp.go            |  7 -------
 baseapp/params.go             | 12 ------------
 x/params/keeper/migrations.go | 23 -----------------------
 x/params/legacy/v044/store.go | 26 --------------------------
 x/params/module.go            |  3 ---
 5 files changed, 71 deletions(-)
 delete mode 100644 x/params/keeper/migrations.go
 delete mode 100644 x/params/legacy/v044/store.go

diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index a994f914a0fa..ebf90301dfe5 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -427,13 +427,6 @@ func (app *BaseApp) GetConsensusParams(ctx sdk.Context) *abci.ConsensusParams {
 		cp.Validator = &vp
 	}
 
-	if app.paramStore.Has(ctx, ParamStoreKeyVersionParams) {
-		var vp tmproto.VersionParams
-
-		app.paramStore.Get(ctx, ParamStoreKeyVersionParams, &vp)
-		cp.Version = &vp
-	}
-
 	return cp
 }
 
diff --git a/baseapp/params.go b/baseapp/params.go
index dbfb44fb6aae..14701d524798 100644
--- a/baseapp/params.go
+++ b/baseapp/params.go
@@ -18,7 +18,6 @@ var (
 	ParamStoreKeyBlockParams     = []byte("BlockParams")
 	ParamStoreKeyEvidenceParams  = []byte("EvidenceParams")
 	ParamStoreKeyValidatorParams = []byte("ValidatorParams")
-	ParamStoreKeyVersionParams   = []byte("VersionParams")
 )
 
 // ParamStore defines the interface the parameter store used by the BaseApp must
@@ -85,14 +84,3 @@ func ValidateValidatorParams(i interface{}) error {
 
 	return nil
 }
-
-// ValidateVersionParams defines a stateless validation on VersionParams. This
-// function is called whenever the parameters are updated or stored.
-func ValidateVersionParams(i interface{}) error {
-	_, ok := i.(tmproto.VersionParams)
-	if !ok {
-		return fmt.Errorf("invalid parameter type: %T", i)
-	}
-
-	return nil
-}
diff --git a/x/params/keeper/migrations.go b/x/params/keeper/migrations.go
deleted file mode 100644
index 2f068242bfa1..000000000000
--- a/x/params/keeper/migrations.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package keeper
-
-import (
-	"github.com/cosmos/cosmos-sdk/baseapp"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	v044 "github.com/cosmos/cosmos-sdk/x/params/legacy/v044"
-)
-
-// Migrator is a struct for handling in-place store migrations.
-type Migrator struct {
-	keeper Keeper
-}
-
-// NewMigrator returns a new Migrator.
-func NewMigrator(keeper Keeper) Migrator {
-	return Migrator{keeper: keeper}
-}
-
-// Migrate1to2 migrates from version 1 to 2.
-func (m Migrator) Migrate1to2(ctx sdk.Context) error {
-	subspace, _ := m.keeper.GetSubspace(baseapp.Paramspace)
-	return v044.MigrateStore(ctx, m.keeper.key, subspace)
-}
diff --git a/x/params/legacy/v044/store.go b/x/params/legacy/v044/store.go
deleted file mode 100644
index 4e935e3f8904..000000000000
--- a/x/params/legacy/v044/store.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package v044
-
-import (
-	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
-
-	"github.com/cosmos/cosmos-sdk/baseapp"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
-)
-
-// migrateParamsStore adds application version parameters to baseapp parameters
-func migrateParamsStore(ctx sdk.Context, paramstore paramtypes.Subspace) {
-	if paramstore.HasKeyTable() {
-		paramstore.Set(ctx, baseapp.ParamStoreKeyVersionParams, tmproto.VersionParams{})
-	} else {
-		paramstore.WithKeyTable(paramtypes.ConsensusParamsKeyTable())
-		paramstore.Set(ctx, baseapp.ParamStoreKeyVersionParams, tmproto.VersionParams{})
-	}
-}
-
-// MigrateStore adds a new key, versionParams, for baseapp consensus parameters.
-func MigrateStore(ctx sdk.Context, storeKey sdk.StoreKey, paramstore paramtypes.Subspace) error {
-	migrateParamsStore(ctx, paramstore)
-	return nil
-
-}
diff --git a/x/params/module.go b/x/params/module.go
index 4f2067397e34..3f14475cd087 100644
--- a/x/params/module.go
+++ b/x/params/module.go
@@ -113,9 +113,6 @@ func (am AppModule) LegacyQuerierHandler(legacyQuerierCdc *codec.LegacyAmino) sd
 func (am AppModule) RegisterServices(cfg module.Configurator) {
 	proposal.RegisterQueryServer(cfg.QueryServer(), am.keeper)
 
-	m := keeper.NewMigrator(am.keeper)
-	cfg.RegisterMigration(types.ModuleName, 2, m.Migrate1to2)
-
 }
 
 // ProposalContents returns all the params content functions used to