Build fails when Ethernet cord is disconnected, succeeds when cord is connected

[matt18224]

When compiling on my laptop running Ubuntu 14.10, if an active Ethernet connection is present, psutil compiles successfully, but if the cord is not connected, then compilation fails with the following error:

======================================================================
FAIL: test_net_if_names_2 (_linux.LinuxSpecificTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/matt/git/psutil/test/_linux.py", line 234, in test_net_if_names_2
    sorted(psutil.net_if_addrs()))
AssertionError: Lists differ: ['lo', 'tun0', 'wlan0'] != ['eth0', 'lo', 'tun0', 'wlan0'...

First differing element 0:
lo
eth0

Second list contains 1 additional elements.
First extra element 3:
wlan0

- ['lo', 'tun0', 'wlan0']
+ ['eth0', 'lo', 'tun0', 'wlan0']
?  ++++++++


----------------------------------------------------------------------
Ran 189 tests in 5.218s

FAILED (failures=1, skipped=54)
Makefile:41: recipe for target 'test' failed
make: *** [test] Error 1

[giampaolo]

Mmmm that means the test is unreliable. I never liked it anyway so I just removed it.