Remove bad TOC prefix for appendices #2695
Remove bad TOC prefix for appendices #2695

Fixes #2695, removes erroneous `Chapter : ` prefix that appears the specified `<appendices>` title in the TOC.
dita-ot/dita-ot,drmacro/dita-ot,drmacro/dita-ot,dita-ot/dita-ot,infotexture/dita-ot,shaneataylor/dita-ot,infotexture/dita-ot,infotexture/dita-ot,shaneataylor/dita-ot,dita-ot/dita-ot,shaneataylor/dita-ot,drmacro/dita-ot,dita-ot/dita-ot,shaneataylor/dita-ot,shaneataylor/dita-ot,dita-ot/dita-ot,drmacro/dita-ot,infotexture/dita-ot,infotexture/dita-ot,drmacro/dita-ot