Removed code to find iso_scalar field for iso_surface commands which may not find a field now that cmiss_number is created as needed; was accessing a NULL field in a/commands example. See https://tracker.physiomeproject.org/show_bug.cgi?id=1067.
Removed code to find iso_scalar field for iso_surface commands which may not find a field now that cmiss_number is created as needed; was accessing a NULL field in a/commands example. See https://tracker.physiomeproject.org/show_bug.cgi?id=1067.

git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@5891 3c1deb5b-d424-0410-962d-aba41a686d42

hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc