Merge branch 'remove-duplicated-style' into 'master'

Remove duplicated style

See merge request gitlab-org/gitlab-ee!3118

app/assets/stylesheets/pages/note_form.scss

@@ -132,22 +132,6 @@
   }
 }
 
-.disabled-comment .issuable-note-warning {
-  border: none;
-  border-radius: $label-border-radius;
-  padding-top: $gl-vert-padding;
-  padding-bottom: $gl-vert-padding;
-
-  .icon svg {
-    position: relative;
-    top: 2px;
-    margin-right: $btn-xs-side-margin;
-    width: $gl-font-size;
-    height: $gl-font-size;
-    fill: $orange-600;
-  }
-}
-
 .sidebar-item-value {
   .fa {
     background-color: inherit;