Despite these being marked as inline, needed when linking at least in
a WNTMSC build with --enable-dbgutil, possibly always with WNTMSC.

I tried to draw polyline.... But on Windows... the end point is not
drawn... the main problem is WinAPI LineTo() function. MSDN says:

The LineTo function draws a line from the current position up to, but
not including, the specified point.

I think WinAPI Polyline() function uses LineTo() to draw a polyline. I
see a hack in VCL module in WinSalgraphics::drawLine(): "we must paint
the endpoint" But there is no such hack for drawPolyLine() function. A
possible solution is same as for drawLine().

Remove installer::download::create_tar_gz_file_from_package, which has not been used
since the integration of CWS rt30_DEV300 in 2008.

Remove an unused style copy per registry entry that was added to
installer::windows::registry::add_userregs_to_registry_table()
as part of the integration of CWS jl67.

Added in CWS nativefixer5, but never used:
	installer::existence::filename_exists_in_filesarray
	installer::existence::filegid_exists_in_filesarray
Added in CWS native222, but never used:
	installer::downloadsigner::logfollowmeinfohash
Added in CWS newscpzip2, but never used:
	installer::converter::convert_hash_into_array
Added in 2004, used for a month, then dropped from usage:
	installer::converter::get_number_from_directory