[Blink, Webkit]: Can't delete inline styles with Ctrl+A Backsapce/Del

[Jakub Ś]

1. Load replacebycode sample.
2. Clear editor contents with new page button.
3. Press Bold and type few characters.
4. Press Ctrl+A and then hit Backspsce or Delete.

Result: Bold text is not deleted and cursor is moved to the beginning.

Problem can be reproduced in Blink and Safari 6+ (works fine in Safari 5)

[Jakub Ś]

Other tickets relatedtto that problem: #13820, #13830, #13504, #5026 (Test 2), #13224, #13225.

[Jakub Ś]

NOTE: This issue is almost the same as #13224. The #13224 talks about extra tag change.

[Jakub Ś]

#14792 was marked as duplicate.