[wp-trac] [WordPress Trac] #30957: Twenty Fifteen: remove unused CSS class for wp_page_menu

[WordPress Trac]

#30957: Twenty Fifteen: remove unused CSS class for wp_page_menu
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 Reporter:  iamtakashi     |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  4.2
Component:  Bundled Theme  |    Version:
 Severity:  normal         |   Keywords:  has-patch
  Focuses:                 |
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 While I was looking at #30722, I've realised the theme still has CSS
 classes for `wp_page_menu` which is unused in the theme -
 `page_item_has_children`, `current_page_item`, `current_page_ancestor`. We
 should remove them from the stylesheet.

 Also I found some errors — double classes and spacing pattern.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30957>
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