Suppression introduced at https://github.com/checkstyle/checkstyle/pull/15686/files#r1785246044

We need to resolve all cases in our code and remove suppression.

removal of P tag from first block of text causes Element 'subsection' cannot have character [children], because the type's content type is element-only., it is limitation of Xdoc files that we are using, workaround is change P to DIV
see details at #15764 (comment)