[Piglit] [PATCH] glx_arb_create_context: Fix build against older GL headers.

[Adam Jackson]

On Fri, 2019-03-22 at 20:40 +0000, Vinson Lee wrote:
> no-error.c: In function ‘check_no_error’:
> no-error.c:37:3: error: ‘GLX_CONTEXT_OPENGL_NO_ERROR_ARB’ undeclared (first use in this function)
>    GLX_CONTEXT_OPENGL_NO_ERROR_ARB, 1,
>    ^

Reviewed-by: Adam Jackson <ajax at redhat.com>

- ajax