Fix for Economics Appendices page header and solution for hiding H1 header

For the Appendices the page header e.g  "APPENDIX A | GLOBAL DOLLAR CHAOS" was only rendering as "Chapter 21 | Chapter 10" or similar.  Targeting in numbering.less utilizes span.cnx-gentext-t to target the rendering of this cnx-header which we initially turned off for W&N request to hide Appendix Titles.  But display:none cannot be used to do this.

Another method was utilized to hide the subsequent H1 header, leaving us with the desired "APPENDIX A", in the h1 header, and the correct Appendix alpha numeric and title in the page header.