"Remove formatting" button for writer field#249

It would be nice to have a mark to strip formatting on selected text in a writer field. See screenshot attached for an example.

@Bruno Actually, this feature is partially present. For example, when you make a text bold, click the bold icon again and the bold format will be removed. Not clearing all formatting in selected text.

@Ahmet Bora That’s not the same. If there’s a long text with a bunch of formatting applied, i.e when copy+pasting from somewhere, it’s a common use case to remove all formatting in one click. This option exists in many wysiwig text editors (compare i.e tinymce or google docs).