Merge pull request #52 from banjiewen/master

Remove ineffective assertion in duration test.
diff --git a/test/folsom_erlang_checks.erl b/test/folsom_erlang_checks.erl
index abfe913..eeeffd7 100644
--- a/test/folsom_erlang_checks.erl
+++ b/test/folsom_erlang_checks.erl
@@ -452,5 +452,4 @@
                                                         kurtosis, percentile, histogram]],
     ?assertEqual(10, proplists:get_value(count, Duration)),
     Last = proplists:get_value(last, Duration),
-    ?assert(Last > 10000),
-    ?assert(Last < 15000).
+    ?assert(Last > 10000).