main.html: remove spotify from feature list

Author: m0veax

www.clementine-player.org/main.html

@@ -8,7 +8,6 @@ <h1>{{ _("About &amp; Features") }}</h1>
   <ul>
     <li>{{ _("Search and play your local music library.") }}</li>
     <li>{{ _("Listen to internet radio from") }}
-      <a href="https://www.spotify.com/">Spotify</a>,
       <a href="http://grooveshark.com/">Grooveshark</a>,
       <a href="http://somafm.com/">SomaFM</a>,
       <a href="http://magnatune.com/">Magnatune</a>,