compound best pXC50 activity is for all types of activity registered

and not only pIC50+pEC50 (discussed with @osperand)


Former-commit-id: b5e46f34952deba8ed94ecddee199e999f9940de

ippisite/ippidb/models.py

@@ -410,14 +410,14 @@ class Compound(models.Model):
 
     @property
     def best_pXC50_activity(self):
-        return self.compoundactivityresult_set.filter(activity_type__in=['pIC50','pEC50']).aggregate(Max('activity'))['activity__max']
+        return self.compoundactivityresult_set.aggregate(Max('activity'))['activity__max']
 
     @property
     def best_pXC50_compound_activity_result(self):
         best_pXC50_activity = self.best_pXC50_activity
         if best_pXC50_activity is None:
             return None
-        return self.compoundactivityresult_set.filter(activity_type__in=['pIC50','pEC50'], activity=best_pXC50_activity)[0]
+        return self.compoundactivityresult_set.filter(activity=best_pXC50_activity)[0]
 
     @property
     def le(self):