Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or

Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x since 2.6 or

2006-08-29  Tor Lillqvist  <tml@novell.com>

	Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x
	since 2.6 or 2.8. It's pointless to keep the Win9x code in here as
	it isn't being maintained anyway. If somebody is interested, it
	can always be found in older GTK+ versions, and in CVS.

	* gdk/win32/gdkwindow-win32.c: Remove the G_WIN32_IS_NT_BASED()
	and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x)
	branches, and any variables or static functions used only by the
	Win9x branches.