Bank proto buf migration (cosmos#6166)

* Bank proto buf migration

* WIP: Added proto code for bank

* added supply on bank module

* Bank module proto migration

* formatter applied

* Added comment for RegisterInterfaceTypes in bank/module

std/codec.go

@@ -8,14 +8,11 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	authexported "github.com/cosmos/cosmos-sdk/x/auth/exported"
 	"github.com/cosmos/cosmos-sdk/x/auth/vesting"
-	"github.com/cosmos/cosmos-sdk/x/bank"
-	bankexported "github.com/cosmos/cosmos-sdk/x/bank/exported"
 	gov "github.com/cosmos/cosmos-sdk/x/gov/types"
 )
 
 var (
 	_ auth.Codec = (*Codec)(nil)
-	_ bank.Codec = (*Codec)(nil)
 	_ gov.Codec  = (*Codec)(nil)
 )
 
@@ -74,45 +71,6 @@ func (c *Codec) UnmarshalAccountJSON(bz []byte) (authexported.Account, error) {
 	return acc.GetAccount(), nil
 }
 
-// MarshalSupply marshals a SupplyI interface. If the given type implements
-// the Marshaler interface, it is treated as a Proto-defined message and
-// serialized that way. Otherwise, it falls back on the internal Amino codec.
-func (c *Codec) MarshalSupply(supplyI bankexported.SupplyI) ([]byte, error) {
-	supply := &Supply{}
-	if err := supply.SetSupplyI(supplyI); err != nil {
-		return nil, err
-	}
-
-	return c.Marshaler.MarshalBinaryBare(supply)
-}
-
-// UnmarshalSupply returns a SupplyI interface from raw encoded account bytes
-// of a Proto-based SupplyI type. An error is returned upon decoding failure.
-func (c *Codec) UnmarshalSupply(bz []byte) (bankexported.SupplyI, error) {
-	supply := &Supply{}
-	if err := c.Marshaler.UnmarshalBinaryBare(bz, supply); err != nil {
-		return nil, err
-	}
-
-	return supply.GetSupplyI(), nil
-}
-
-// MarshalSupplyJSON JSON encodes a supply object implementing the SupplyI
-// interface.
-func (c *Codec) MarshalSupplyJSON(supply bankexported.SupplyI) ([]byte, error) {
-	return c.Marshaler.MarshalJSON(supply)
-}
-
-// UnmarshalSupplyJSON returns a SupplyI from JSON encoded bytes.
-func (c *Codec) UnmarshalSupplyJSON(bz []byte) (bankexported.SupplyI, error) {
-	supply := &Supply{}
-	if err := c.Marshaler.UnmarshalJSON(bz, supply); err != nil {
-		return nil, err
-	}
-
-	return supply.GetSupplyI(), nil
-}
-
 // MarshalProposal marshals a Proposal. It accepts a Proposal defined by the x/gov
 // module and uses the application-level Proposal type which has the concrete
 // Content implementation to serialize.