Remove broken link to Polish translation

pl.privacytools.io has miscofigured server SSL settings, so one cannot access it

README.md

@@ -55,7 +55,6 @@ Are you working with a privacy focused company? Ask your manager or marketing te
 
 ## Community Translations
 - [繁体中文 / Chinese](https://privacytools.twngo.xyz/) - [GitHub](https://github.com/twngo/privacytools-zh)
-- [Polski / Polish](https://pl.privacytools.io) - [Gitea](https://git.privacytools.io/pl-privacytoolsIO/pl.privacytools.io)
 - [Italiano / Italian](https://privacytools-it.github.io/) - [GitHub](https://github.com/privacytools-it/privacytools-it.github.io)
 - [Русский / Russian](https://privacytools.ru) - [GitHub](https://github.com/c0rdis/privacytools.ru)
 - [Português / Portuguese](https://www.privacidade.digital/) - [GitHub](https://github.com/PrivacidadeDigital/privacidade.digital)

_includes/nav.html

@@ -130,7 +130,6 @@
           <span class="nav-dropdown">
             <a href="https://www.privacytools.io/" class="dropdown-item">English</a>
             <a href="https://privacytools.twngo.xyz/" rel="nofollow noopener" class="dropdown-item">繁體中文</a>
-            <a href="https://pl.privacytools.io/" rel="nofollow noopener" class="dropdown-item">Polski</a>
             <a href="https://www.privacidade.digital/" rel="nofollow noopener" class="dropdown-item">Português</a>
             <a href="https://privacytools-it.github.io/" rel="nofollow noopener" class="dropdown-item">Italiano</a>
             <a href="https://privacytools.ru" rel="nofollow noopener" class="dropdown-item">Русский</a>