move admonition delimiter to Presentation XML, admonition name/paragraph split to HTML: metanorma/isodoc#613

Author: opoudjis

lib/isodoc/iso/presentation_xml_convert.rb

@@ -226,7 +226,6 @@ def render_identifier(ident)
       end
 
       def admonition_delim(elem)
-        require "debug"; binding.b
         if elem.at("./*[not(self::xmlns:name)]")&.name == "p"
           " — "
         else