msvc: cleanup

msvc: cleanup

Remove unused macros for dependency directories,
since dependencies are handled by vcpkg.

Remove unused .bat files.

Reported-by: Frank Lichtenheld <frank@lichtenheld.com>
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20220208114905.100-1-lstipakov@gmail.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23730.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit ff5723c4ddfee28564500d28a1bd78766171ea3e)