Remove broken v1 docs link (#1008)

Author: mkszepp

docs/app/templates/public-pages.hbs

@@ -49,11 +49,6 @@
 <div class="main-content">
   {{outlet}}
 </div>
-<aside class="link-to-other-version">
-  This is the documentation for version 2.X of the addon. If you are looking for
-  version 1.X you can find the docs
-  <a href="https://1-x.ember-basic-dropdown.com">here</a>
-</aside>
 <footer class="main-footer">
   <div class="main-footer-content">
     Deployed with love by