I would like to remove the code for the INLINE_INSERTCOPYING variable in texi2any, as it doesn't seem to be used anywhere, and it seems to me to be unnecessary. I thought I should write to this list in case someone thought it was necessary or useful. As far as I can tell, the use of this variable makes any difference to someone using texi2any.
I thought the variable might have come from texi2html so I looked at the newest revision of its source code (under the texi2html subdirectory of Texinfo's SVN repository). It was possibly used for Info and DocBook output. However, the current texi2any code doesn't use it for Info and DocBook output.
