fix i18n

packages/app/public/static/locales/en_US/translation.json

@@ -702,7 +702,6 @@
     "ldap_user_not_valid": "Ldap user is no valid",
     "external_account_not_exist": "Failed to find or create External account",
     "maximum_number_of_users": "Can not register more than the maximum number of users.",
-    "database_error": "Database Server Error occured",
     "sign_in_failure": "Sign in failure.",
     "aws_sttings_required": "AWS settings required to use this function. Please ask the administrator.",
     "application_already_installed": "Application already installed.",

packages/app/public/static/locales/ja_JP/translation.json

@@ -693,7 +693,6 @@
     "ldap_user_not_valid": "Ldap user is no valid",
     "external_account_not_exist": "外部アカウントが見つからない、または作成に失敗しました",
     "maximum_number_of_users": "ユーザー数が上限を超えたためアクティベートできません。",
-    "database_error":"データベースサーバーに問題があります。",
     "sign_in_failure": "ログインに失敗しました。",
     "aws_sttings_required": "この機能にはAWS設定が必要です。管理者に訪ねて下さい。",
     "application_already_installed": "アプリケーションのインストールが完了しました。",

packages/app/public/static/locales/zh_CN/translation.json

@@ -749,7 +749,6 @@
     "ldap_user_not_valid": "Ldap user is no valid",
     "external_account_not_exist": "查找或创建外部账户失败",
 		"maximum_number_of_users": "注册的用户数不能超过最大值。",
-		"database_error": "发生数据库服务器错误",
 		"sign_in_failure": "登录失败。",
 		"aws_sttings_required": "使用此功能所需的AWS设置。请询问管理员。",
 		"application_already_installed": "应用程序已安装。",