Remove suggested colors hover underline

CHANGELOG

@@ -17,6 +17,7 @@ v 8.12.0 (unreleased)
   - Fix bug where pagination is still displayed despite all todos marked as done (ClemMakesApps)
   - Center build stage columns in pipeline overview (ClemMakesApps)
   - Rename behaviour to behavior in bug issue template for consistency (ClemMakesApps)
+  - Remove suggested colors hover underline (ClemMakesApps)
   - Shorten task status phrase (ClemMakesApps)
   - Add hover color to emoji icon (ClemMakesApps)
   - Fix branches page dropdown sort alignment (ClemMakesApps)

app/assets/stylesheets/pages/labels.scss

@@ -7,6 +7,7 @@
     display: inline-block;
     margin-right: 10px;
     margin-bottom: 10px;
+    text-decoration: none;
   }
 
   &.suggest-colors-dropdown {