revert changes

Author: daretobedifferent18

app/components/public/session-item.hbs

@@ -72,6 +72,13 @@
         <div class="column" style={{css display='flex' align-items='center' flex-direction='column'}}>   
           {{#if (or this.pdfLink this.pptLink)}}
             <iframe title="session-slides" class="slide-iframe mb-2" width="100%" frameborder="0" src="https://docs.google.com/gview?url={{ @session.slidesUrl }}&embedded=true"></iframe>
+          {{else if @session.slidesUrl}}
+            <a class="mb-2" href={{ @session.slidesUrl }} target="_blank" rel="noopener noreferrer">
+              <button class="ui labeled icon button">
+                <i class="file powerpoint icon"></i>
+                {{t 'Slides'}}
+              </button>
+            </a>
           {{/if}}
 
           {{#if this.youtubeLink}}