Merge branch 'delete-icon-color' into 'master'

Fixed delete comment button color

![Screen_Shot_2016-04-06_at_09.55.38](/uploads/526c03db67b0fc7dc9876439f4be2b6b/Screen_Shot_2016-04-06_at_09.55.38.png)

See merge request !3562

app/views/projects/notes/_note.html.haml

@@ -18,7 +18,7 @@
                 = access
             = link_to '#', title: 'Edit comment', class: 'note-action-button js-note-edit' do
               = icon('pencil-square-o')
-            = link_to namespace_project_note_path(note.project.namespace, note.project, note), title: 'Remove comment', method: :delete, data: { confirm: 'Are you sure you want to remove this comment?' }, remote: true, class: 'note-action-button js-note-delete danger' do
+            = link_to namespace_project_note_path(note.project.namespace, note.project, note), title: 'Remove comment', method: :delete, data: { confirm: 'Are you sure you want to remove this comment?' }, remote: true, class: 'note-action-button js-note-delete' do
               = icon('trash-o')
       .note-body{class: note_editable?(note) ? 'js-task-list-container' : ''}
         .note-text