Remove a problematic test case that we do not want to support (JuliaStats#249)

ararslan · tkelman · commit 1a4e1049036d · 2017-05-24T13:51:36.000-04:00
(cherry picked from commit 36be315)
diff --git a/test/reduce.jl b/test/reduce.jl
@@ -164,6 +164,5 @@ da1[1:3:end] = NA
 
 da2[1:2:end] = NA
 keep = !da1.na & !da2.na
-@test isna(mean(da1, weights(da2)))
 @same_behavior mean(da1, weights(da2); skipna=true) mean(da1.data[keep], weights(da2.data[keep]))
 end
