Update virtualreality.adoc

removing references to most legacy projects that don't provide any additional functionality. keeping cardbaord since it seems to work well for some.

src/docs/asciidoc/jme3/virtualreality.adoc

@@ -22,12 +22,5 @@ https://hub.jmonkeyengine.org/t/official-vr-module/37830/32
 Google Cardboard VR SDK 1.0 integration
 
 == Legacy
-jMonkeyVR (https://github.com/phr00t/jMonkeyVR)
-This is the main library to use when you want wide VR support. It has full OpenVR/SteamVR support and OSVR support in the making (as of Oct 2016)
-
-jme3-osvr (https://github.com/neph1/jme3-osvr)
-Together with https://github.com/neph1/OSVR-Java provides rudimentary OSVR support (extended mode). Examples: https://github.com/neph1/jme3-osvr-examples
-
+The following projects are not up to date, but may provide functionality not found in the other packages.
 Google Cardboard up to version 0.6: https://github.com/neph1/jme-cardboard
-
-Oculus Rift up to version 0.5: https://github.com/neph1/jmonkeyengine-oculus-rift