remove debug

Author: jan-elastic

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/approximate/ConfidenceInterval.java

@@ -220,7 +220,6 @@ public static double[] computeConfidenceInterval(
         int bucketCount,
         double confidenceLevel
     ) {
-        System.out.println("@computeConfidenceInterval: " + Arrays.toString(estimates));
         Mean means = new Mean();
         Mean stddevs = new Mean();
         Mean skews = new Mean();