metadata: expand container runtime into bucket

Signed-off-by: Stephen J Day <stephen.day@docker.com>

containers/containers.go

@@ -1,10 +1,7 @@
 package containers
 
 import (
-	"bytes"
 	"context"
-	"encoding/gob"
-	"errors"
 	"time"
 )
 
@@ -28,39 +25,6 @@ type RuntimeInfo struct {
 	Options map[string]string
 }
 
-type marshaledRuntimeInfo struct {
-	Name    string
-	Options map[string]string
-}
-
-func (r *RuntimeInfo) MarshalBinary() ([]byte, error) {
-	buf := bytes.NewBuffer(nil)
-	if err := gob.NewEncoder(buf).Encode(marshaledRuntimeInfo{
-		Name:    r.Name,
-		Options: r.Options,
-	}); err != nil {
-		return nil, err
-	}
-	return buf.Bytes(), nil
-}
-
-func (r *RuntimeInfo) UnmarshalBinary(data []byte) error {
-	buf := data
-	if len(buf) == 0 {
-		return errors.New("RuntimeInfo: no data")
-	}
-	var (
-		mr     marshaledRuntimeInfo
-		reader = bytes.NewReader(buf)
-	)
-	if err := gob.NewDecoder(reader).Decode(&mr); err != nil {
-		return err
-	}
-	r.Name = mr.Name
-	r.Options = mr.Options
-	return nil
-}
-
 type Store interface {
 	Get(ctx context.Context, id string) (Container, error)
 	List(ctx context.Context, filter string) ([]Container, error)