Remove rogue scrollbars for some issue comments

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/25989

app/assets/stylesheets/pages/notes.scss

@@ -195,10 +195,10 @@ ul.notes {
     }
     .note-body {
-      overflow: auto;
+      overflow-x: auto;
+      overflow-y: hidden;
       .note-text {
-        overflow: auto;
         word-wrap: break-word;
         @include md-typography;
         // Reset ul style types since we're nested inside a ul already

changelogs/unreleased/25989-fix-rogue-scrollbars-on-comments.yml

+---
+title: Remove rogue scrollbars for issue comments with inline elements
+merge_request:
+author: