vendor: update all dependencies

vendor/google.golang.org/api/container/v1alpha1/container-api.json

@@ -1,7 +0,0 @@
-{
-  "error": {
-    "code": 404,
-    "message": "Discovery document not found for API service: container.googleapis.com format: rest version: v1alpha1",
-    "status": "NOT_FOUND"
-  }
-}

vendor/google.golang.org/api/container/v1alpha1/container-gen.go

@@ -1,65 +0,0 @@
-// Package container provides access to the .
-//
-// Usage example:
-//
-//   import "google.golang.org/api/container/v1alpha1"
-//   ...
-//   containerService, err := container.New(oauthHttpClient)
-package container // import "google.golang.org/api/container/v1alpha1"
-
-import (
-	"bytes"
-	"encoding/json"
-	"errors"
-	"fmt"
-	context "golang.org/x/net/context"
-	ctxhttp "golang.org/x/net/context/ctxhttp"
-	gensupport "google.golang.org/api/gensupport"
-	googleapi "google.golang.org/api/googleapi"
-	"io"
-	"net/http"
-	"net/url"
-	"strconv"
-	"strings"
-)
-
-// Always reference these packages, just in case the auto-generated code
-// below doesn't.
-var _ = bytes.NewBuffer
-var _ = strconv.Itoa
-var _ = fmt.Sprintf
-var _ = json.NewDecoder
-var _ = io.Copy
-var _ = url.Parse
-var _ = gensupport.MarshalJSON
-var _ = googleapi.Version
-var _ = errors.New
-var _ = strings.Replace
-var _ = context.Canceled
-var _ = ctxhttp.Do
-
-const apiId = ""
-const apiName = ""
-const apiVersion = ""
-const basePath = "https://www.googleapis.com/discovery/v1/apis"
-
-func New(client *http.Client) (*Service, error) {
-	if client == nil {
-		return nil, errors.New("client is nil")
-	}
-	s := &Service{client: client, BasePath: basePath}
-	return s, nil
-}
-
-type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
-}
-
-func (s *Service) userAgent() string {
-	if s.UserAgent == "" {
-		return googleapi.UserAgent
-	}
-	return googleapi.UserAgent + " " + s.UserAgent
-}