Disable test for this dataset

I disable this because it must fetch some data from the internet and
makes running the test suite relly slow.

This requires some investigation to see how we could ship the code
so that no download is required.

From: Fabian Pedregosa <fabian@fseoane.net>

git-svn-id: https://scikit-learn.svn.sourceforge.net/svnroot/scikit-learn/trunk@321 22fbfee3-77ab-4535-9bad-27d1bd3bc7d8

scikits/learn/datasets/narr/data.py

+"""
+XXX: currently disabled
+"""
+
 """
 =============
 NCEP NARR data sets
@@ -179,4 +183,4 @@ def convert_time(time):
     return t0+days*day+hours*hour
     
     
-narr = load(1979, 1,1)
+# narr = load(1979, 1,1) XXX: currently disabled