remove 'x11' test from 'make test'

[Satish Balay]

On Wed, 28 Oct 2009, Boyana Norris wrote:

> Apart from the idiot reasons, X11 tests can easily fail on an Apple laptop
> because the X server becomes unusable every time the IP changes, which is
> fairly frequently. I don't really use X a lot and thus do not restart the
> server every time I move the laptop, so these tests fail almost all the time
> (but I've learned to ignore those errors).

Linux on laptops used to have this problem - but it doesn't exist anymore.

The reason is - x-server is now bound-to/listen-on a unix socket [:0]
- and not a tcp socket [localhost:0] - so hostname change doesn't
affect it. [from ps:]

/usr/bin/Xorg :0 -nr -verbose -auth /var/run/gdm/auth-for-gdm-l9vnzI/database -nolisten tcp

Not sure how this can be done on mac/windows..

Satish