Count the number of TooManyDatapointsFoundException

Author: sholavanalli

carbonj.service/src/main/java/com/demandware/carbonj/service/db/TimeSeriesStoreImpl.java

@@ -566,9 +566,7 @@ private ThreadPoolExecutor selectThreadPoolExecutor(Query query, List<Metric> ma
         long estimatedNumberOfDataPoints = getEstimatedNumberOfDataPoints(query.from(), query.until(),
                 query.now(), matchedLeafMetrics);
         if (estimatedNumberOfDataPoints > dataPointsThreshold) {
-            if (DatabaseMetrics.datapointsLimitExceeded != null) {
-                DatabaseMetrics.datapointsLimitExceeded.mark();
-            }
+            DatabaseMetrics.datapointsLimitExceeded.mark();
             throw new TooManyDatapointsFoundException(dataPointsThreshold);
         }