remove dl buttons

Author: jcupitt

index.html

@@ -14,8 +14,6 @@
       <h1 class="project-name">php-vips</h1>
       <h2 class="project-tagline">php binding for libvips</h2>
       <a href="https://github.com/jcupitt/php-vips" class="btn">View on GitHub</a>
-      <a href="https://github.com/jcupitt/php-vips/zipball/master" class="btn">Download .zip</a>
-      <a href="https://github.com/jcupitt/php-vips/tarball/master" class="btn">Download .tar.gz</a>
     </section>
 
     <section class="main-content">