remove unnecessary checks

pkg/image/image.go

@@ -5,7 +5,6 @@ import (
 	"net"
 
 	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/versions"
 	dodotypes "github.com/oclaussen/dodo/pkg/types"
 	"github.com/pkg/errors"
 	"golang.org/x/net/context"
@@ -40,8 +39,6 @@ type ImageConfig struct {
 // Client represents a docker client that can do everything this package
 // needs
 type Client interface {
-	ClientVersion() string
-	Ping(context.Context) (types.Ping, error)
 	DialSession(context.Context, string, map[string][]string) (net.Conn, error)
 	ImageBuild(context.Context, io.Reader, types.ImageBuildOptions) (types.ImageBuildResponse, error)
 }
@@ -51,13 +48,6 @@ func NewImage(client Client, authConfigs map[string]types.AuthConfig, config *Im
 	if client == nil {
 		return nil, errors.New("client may not be nil")
 	}
-	ping, err := client.Ping(context.Background())
-	if err != nil {
-		return nil, err
-	}
-	if !ping.Experimental || versions.LessThan(client.ClientVersion(), "1.31") {
-		return nil, errors.Errorf("buildkit not supported by daemon")
-	}
 
 	// TODO: do this somewhere else
 	if config.Context == "" {

pkg/image/image_test.go

@@ -27,14 +27,6 @@ type fakeImageClient struct {
 	willBuildAs string
 }
 
-func (client *fakeImageClient) ClientVersion() string {
-	return "1.39"
-}
-
-func (client *fakeImageClient) Ping(_ context.Context) (types.Ping, error) {
-	return types.Ping{Experimental: true}, nil
-}
-
 func (client *fakeImageClient) DialSession(
 	_ context.Context, _ string, _ map[string][]string,
 ) (net.Conn, error) {