Merge branch 'activity-feed-border-mobile' into 'master'

Removes random border on event items on mobile

See merge request !9654

app/assets/stylesheets/pages/events.scss

@@ -155,7 +155,7 @@
 
 @media (max-width: $screen-xs-max) {
   .event-item {
-    padding-left: $gl-padding;
+    padding-left: 0;
 
     .event-title {
       white-space: normal;
@@ -169,8 +169,7 @@
 
     .event-body {
       margin: 0;
-      border-left: 2px solid $events-body-border;
-      padding-left: 10px;
+      padding-left: 0;
     }
 
     .event-item-timestamp {