Stop comparing min_num results with ">", it's ">="

and do not use classmethod for it, since it is only a comparison

sbws/lib/v3bwfile.py

@@ -275,9 +275,9 @@ class V3BWLine(object):
         kwargs.update(cls.result_types_from_results(results))
         # useful args for scaling
         if success_results:
-            min_num_success_results = cls.min_num_results(success_results,
-                                                          min_num)
-            if not min_num_success_results:
+            if not len(success_results) >= min_num:
+                log.debug('There are no results with relays that have at least'
+                          '{} results.'.format(min_num))
                 return None
             results_away = \
                 cls.results_away_each_other(min_num_success_results, secs_away)