Remove Mastodon links (pytorch#1712)

Signed-off-by: Chris Abraham <[email protected]>

Author: cjyabraham

_config.yml

@@ -72,7 +72,6 @@ external_urls:
   google: https://www.google.com/podcasts?feed=aHR0cHM6Ly9mZWVkcy5zaW1wbGVjYXN0LmNvbS9PQjVGa0lsOA%3D%3D
   amazon: https://music.amazon.com/podcasts/7a4e6f0e-26c2-49e9-a478-41bd244197d0/PyTorch-Developer-Podcast?
   linkedIn: https://www.linkedin.com/company/pytorch
-  mastodon: https://social.lfx.dev/@pytorch
 livereload: true
 markdown: kramdown
 highlighter: rouge

_includes/footer.html

@@ -68,9 +68,6 @@ <h2>Resources</h2>
         <li><a href="{{ site.external_urls.linkedIn }}" target="_blank" title="PyTorch on LinkedIn">
           <svg xmlns="http://www.w3.org/2000/svg" viewbox="-10.23 -10.23 531.96 531.96" aria-label="LinkedIn"><rect width="512" height="512" rx="0" fill="currentColor"/><circle fill="#000" cx="142" cy="138" r="37"/><path stroke="#000" stroke-width="66" d="M244 194v198M142 194v198"/><path fill="#000" d="M276 282c0-20 13-40 36-40 24 0 33 18 33 45v105h66V279c0-61-32-89-76-89-34 0-51 19-59 32"/></svg>
         </a></li>
-        <li><a href="{{ site.external_urls.mastodon }}" rel="me" target="_blank" title="PyTorch on Mastodon">
-          <svg fill="currentColor" aria-label="Mastodon" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" xml:space="preserve"><path d="M21.327 8.566c0-4.339-2.843-5.61-2.843-5.61-1.433-.658-3.894-.935-6.451-.956h-.063c-2.557.021-5.016.298-6.45.956 0 0-2.843 1.272-2.843 5.61 0 .993-.019 2.181.012 3.441.103 4.243.778 8.425 4.701 9.463 1.809.479 3.362.579 4.612.51 2.268-.126 3.541-.809 3.541-.809l-.075-1.646s-1.621.511-3.441.449c-1.804-.062-3.707-.194-3.999-2.409a4.523 4.523 0 0 1-.04-.621s1.77.433 4.014.536c1.372.063 2.658-.08 3.965-.236 2.506-.299 4.688-1.843 4.962-3.254.434-2.223.398-5.424.398-5.424zm-3.353 5.59h-2.081V9.057c0-1.075-.452-1.62-1.357-1.62-1 0-1.501.647-1.501 1.927v2.791h-2.069V9.364c0-1.28-.501-1.927-1.502-1.927-.905 0-1.357.546-1.357 1.62v5.099H6.026V8.903c0-1.074.273-1.927.823-2.558.566-.631 1.307-.955 2.228-.955 1.065 0 1.872.409 2.405 1.228l.518.869.519-.869c.533-.819 1.34-1.228 2.405-1.228.92 0 1.662.324 2.228.955.549.631.822 1.484.822 2.558v5.253z"/></svg>
-        </a></li>
       </ul>
     </div>
 

_sass/footer.scss

@@ -265,7 +265,7 @@
 	display: grid;
 	grid-column-gap: 3%;
 	grid-row-gap: 30px;
-	grid-template-columns: repeat(5, minmax(0, 1fr));
+	grid-template-columns: repeat(4, minmax(0, 1fr));
 
 	li {
 		text-align: center;