Use mod vendor for vendored directory (backwards compatible)

vendor/github.com/mattermost/mattermost-server/model/token.go

@@ -1,40 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package model
-
-import "net/http"
-
-const (
-	TOKEN_SIZE            = 64
-	MAX_TOKEN_EXIPRY_TIME = 1000 * 60 * 60 * 24 // 24 hour
-	TOKEN_TYPE_OAUTH      = "oauth"
-)
-
-type Token struct {
-	Token    string
-	CreateAt int64
-	Type     string
-	Extra    string
-}
-
-func NewToken(tokentype, extra string) *Token {
-	return &Token{
-		Token:    NewRandomString(TOKEN_SIZE),
-		CreateAt: GetMillis(),
-		Type:     tokentype,
-		Extra:    extra,
-	}
-}
-
-func (t *Token) IsValid() *AppError {
-	if len(t.Token) != TOKEN_SIZE {
-		return NewAppError("Token.IsValid", "model.token.is_valid.size", nil, "", http.StatusInternalServerError)
-	}
-
-	if t.CreateAt == 0 {
-		return NewAppError("Token.IsValid", "model.token.is_valid.expiry", nil, "", http.StatusInternalServerError)
-	}
-
-	return nil
-}