This tests removing underline which is applied outside of editable root. We shouldn't be removing underline.

text
Before: <div style="text-decoration: underline;" contenteditable="false"><div id="test" contenteditable="true">text</div></div>
After: <div style="text-decoration: underline;" contenteditable="false"><div id="test" contenteditable="true">text</div></div>
