collect: remove dead code

slapos/collect/reporter.py

@@ -475,11 +475,6 @@ class ConsumptionReport(ConsumptionReportBase):
 
      return xml_report_path
 
-  def _getAverageFromList(self, data_list):
-    if not data_list:
-      return 0
-    return sum(data_list)/len(data_list)
-
   @withDB
   def _getCpuLoadAverageConsumption(self, date_scope):
     (cpu_load_percent_list,), = self.db.select("system", date_scope,

slapos/tests/test_collect.py

@@ -742,7 +742,6 @@ class TestConsumptionReportBase(unittest.TestCase):
   def _get_file_content(self, f_path):
     with open(f_path, "r") as f:
       return f.readlines()
-    return []
 
   def loadPredefinedDB(self):
     # populate db
@@ -825,11 +824,6 @@ class TestConsumptionReport(TestConsumptionReportBase):
                                       location=self.temp_dir,
                                       user_list=self.get_fake_user_list(15))
 
-  def test_get_average_from_list(self):
-    self.assertEqual(2, self.report._getAverageFromList([2, 2]))
-    self.assertEqual(0, self.report._getAverageFromList([]))
-    self.assertEqual(10, self.report._getAverageFromList(range(1, 20)))
-
   def test_getCpuLoadAverageConsumption(self):
     self.assertEqual(self.report._getCpuLoadAverageConsumption('2019-10-05'), 74.44468085106385)
     self.assertEqual(self.report._getCpuLoadAverageConsumption('2019-10-06'), 74.99183673469388)