Removed 0 padding

The extra spacing at the top is caused the user-callout box that should be fixed in another merge request

app/assets/stylesheets/framework/calendar.scss

 .calender-block {
-  padding: 0 0 $gl-padding;
+  padding-left: 0;
+  padding-right: 0;
   border-top: 0;
   direction: rtl;