Unit test fixes

var/spack/repos/builtin/packages/opengl/package.py

@@ -30,11 +30,6 @@ class Opengl(Package):
 
     homepage = "https://www.opengl.org/"
 
-    # A second argument (usually the hash) must be supplied to the
-    # version directive, but 'n/a' is used here because this package
-    # is a placeholder for a system/vendor installation of OpenGL
-    version('3.2', 'n/a')
-
     provides('gl@:4.5', when='@4.5:')
     provides('gl@:4.4', when='@4.4:')
     provides('gl@:4.3', when='@4.3:')