Fix J2DDemo sanity breakage caused due to initial commit of 8230958

Initial commit of 8230958 has broken sanity of J2DDemo - with or without anti-aliasing.

 To test -
1) launch J2DDemo -
/Users/AGHAISAS/jdk_workspace/lanai_ws/one/lanai/build/macosx-x86_64-server-release/images/jdk/bin/java -Dsun.java2d.metal=true -jar /Users/AGHAISAS/jdk_workspace/lanai_ws/one/lanai/build/macosx-x86_64-server-release/images/jdk/demo/jfc/J2Ddemo/J2Ddemo.jar -antialias=false
2) Click on ‘Lines’ tab - J2DDemo app crashes with this message -

-[MTLIOAccelRenderCommandEncoder bindEmulationArguments]:127: failed assertion `No render pipeline state bound'
Abort trap: 6

Changing antialias=true also results in a crash.