Fix dead gateway bulletin links

content/concepts/tokens/freezes.ja.md

@@ -88,7 +88,6 @@ No Freeze設定は、アドレスのマスターキーのシークレットキ
 
 # 関連項目
 
-* [GB-2014-02新機能残高凍結](https://ripple.com/files/GB-2014-02.pdf)
 * [凍結コードの例](https://github.com/XRPLF/xrpl-dev-portal/tree/master/content/_code-samples/freeze)
 
 <!--{# common link defs #}-->

content/concepts/tokens/freezes.md

@@ -82,7 +82,6 @@ You can only enable the No Freeze setting with a transaction signed by your addr
 
 # See Also
 
-- [GB-2014-02 New Feature: Balance Freeze](https://ripple.com/files/GB-2014-02.pdf)
 - [Freeze Code Samples](https://github.com/XRPLF/xrpl-dev-portal/tree/master/content/_code-samples/freeze)
 - **Concepts:**
     - [Trust Lines and Issuing](trust-lines-and-issuing.html)