revert: Revert "feat: staking config (#10988)" (#11446)

* Revert "feat: staking config (#10988)"

This reverts commit 5e9656f363.

* remove docs

x/staking/migrations/v040/keys.go

@@ -79,7 +79,7 @@ func GetValidatorsByPowerIndexKey(validator types.Validator) []byte {
 	// NOTE the address doesn't need to be stored because counter bytes must always be different
 	// NOTE the larger values are of higher value
 
-	consensusPower := types.TokensToConsensusPower(validator.Tokens, types.DefaultConfig().PowerReduction)
+	consensusPower := sdk.TokensToConsensusPower(validator.Tokens, sdk.DefaultPowerReduction)
 	consensusPowerBytes := make([]byte, 8)
 	binary.BigEndian.PutUint64(consensusPowerBytes, uint64(consensusPower))
 

x/staking/migrations/v043/store_test.go

@@ -62,7 +62,7 @@ func TestStoreMigration(t *testing.T) {
 		{
 			"ValidatorsByPowerIndexKey",
 			v040staking.GetValidatorsByPowerIndexKey(val),
-			types.GetValidatorsByPowerIndexKey(val, types.DefaultConfig().PowerReduction),
+			types.GetValidatorsByPowerIndexKey(val, sdk.DefaultPowerReduction),
 		},
 		{
 			"DelegationKey",