7131793 : [macosx] some cleanup in OGL pipeline code
The fix for http://java.net/jira/browse/MACOSX_PORT-766 provides CALayer-based surface that isn't connected to NSView/NSWindow. Along with the changes, the initial implementation of CALayer-based surface (tied to NSView/NSWindow) has been commented out and the code is stale now and it needs to be deleted (including the code for IOSurface-based rendering).
Fixed in http://hg.openjdk.java.net/jdk7u/jdk7u-osx/jdk/rev/ec8c141b4c28
Technical review: http://mail.openjdk.java.net/pipermail/macosx-port-dev/2012-January/002537.html