Update analytics-Deleting-Duplicates.sql (#290)

Remove incomplete SQL.

Author: iamhucong

sql/analytical-sql-examples/analytics-Deleting-Duplicates.sql

@@ -269,6 +269,3 @@ Insert into perth_weather (SAMPLED,MIN_TEMP,MAX_TEMP,RAINFALL,EVAP,SUNSHINE,WIND
 Insert into perth_weather (SAMPLED,MIN_TEMP,MAX_TEMP,RAINFALL,EVAP,SUNSHINE,WIND_DIR,MAX_WIND,MAX_WIND_TIME,TEMP_9AM,HUMIDITY_9AM,CLOUD_9AM,WIND_DIR_9AM,WIND_SPEED_9AM,PRESSURE_9AM,TEMP_3PM,HUMIDITY_3PM,CLOUD_3PM,WIND_DIR_3PM,WIND_SPEED_3PM,PRESSURE_3PM) 
  values (to_date('30/JAN/16','DD/MON/RR'),24.5,27,0,15.8,1.3,'S',35,'11:35',27,39,7,'E',7,1006.3,20.5,88,8,'ENE',7,1006);
 
-Insert into perth_weather (SAMPLED,MIN_TEMP,MAX_TEMP,RAINFALL,EVAP,SUNSHINE,WIND_DIR,MAX_WIND,MAX_WIND_TIME,TEMP_9AM,HUMIDITY_9AM,CLOUD_9AM,WIND_DIR_9AM,WIND_SPEED_9AM,PRESSURE_9AM,TEMP_3PM,HUMIDITY_3PM,CLOUD_3PM,WIND_DIR_3PM,WIND_SPEED_3PM,PRESSURE_3PM) 
- values (to_date;
-