Merge pull request #331 from osunyorg/fix-btn-program-dark-mode-color

Fix default programs share button color in darkmode

assets/sass/_theme/sections/diplomas.sass

@@ -118,8 +118,6 @@ ul.diplomas
         display: flex
         flex-wrap: wrap
         .dropdown-share
-            --btn-background: #{$hero-background-color}
-            --btn-hover-background: #{$color-background}
             button
                 @extend .button
                 @include button-icon(social-inline)