Remove hard limit on number of pages in wxHtmlPrintout.

This seems to be a leftover from an old version in which the page breaks
positions were stored in a fixed size array. As the code uses a dynamic array
now there doesn't seem to be any reason to impose any limit on the number of
pages and some people did run into the old 999 pages limitation apparently.

Closes #11159.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65076 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/html/htmldefs.h

@@ -95,9 +95,6 @@
     /* size of temporary buffer used during parsing */
 #define wxHTML_BUFLEN                  1024
 
-    /* maximum number of pages printable via html printing */
-#define wxHTML_PRINT_MAX_PAGES          999
-
 #endif // wxUSE_HTML
 
 #endif // _WX_HTMLDEFS_H_