Switch openssl forwarding target to 'none'.

Building it as a static library causes problems on Mac at least since it's
empty.

BUG=393317

Review URL: https://codereview.chromium.org/401903004

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/openssl@284247 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
1 file changed