erp5_wendelin_drone: do not check for null rate

As timestamps are always different, checking for a null rate is pointless.

bt5/erp5_wendelin_drone/PathTemplateItem/portal_callables/DataAnalysisLine_convertDroneDataArrayToScoreArray.py

@@ -135,10 +135,6 @@ for name in not_seen_list[:]:
         continue
       over_timestamp = simulated_flight[simulated_flight["timestamp (ms)"] >= row["timestamp (ms)"]].head(1)
       under_timestamp = simulated_flight[simulated_flight["timestamp (ms)"] <= row["timestamp (ms)"]].tail(1)
-
-      if (float(over_timestamp["timestamp (ms)"]) - float(under_timestamp["timestamp (ms)"])) == 0:
-        rate = 0
-      else:
       rate = (float(over_timestamp["timestamp (ms)"]) - row["timestamp (ms)"])/(float(over_timestamp["timestamp (ms)"]) - float(under_timestamp["timestamp (ms)"]))
 
       tmp_sim["latitude"].append(rated_value(float(over_timestamp["latitude ()"]), float(under_timestamp["latitude ()"]), rate))