Refactored the code

Signed-off-by: Sriram Ganesh <[email protected]>

Author: rgsriram

server/src/test/java/org/opensearch/index/analysis/SimpleSegmentTopologyTests.java

@@ -117,40 +117,6 @@ public void testImprovementOverCurrentDefaults() {
         assertTrue("Recommended segments per tier should be reasonable", recommendedSegmentsPerTier < currentSegmentsPerTier);
     }
 
-    // Helper methods
-
-    private double calculateVariance(long[] values) {
-        if (values.length == 0) return 0;
-
-        double mean = 0;
-        for (long value : values) {
-            mean += value;
-        }
-        mean /= values.length;
-
-        double variance = 0;
-        for (long value : values) {
-            variance += (value - mean) * (value - mean);
-        }
-        return variance / values.length;
-    }
-
-    private double calculateSkew(long[] values) {
-        if (values.length == 0) return 0;
-
-        long max = values[0];
-        long min = values[0];
-        for (long value : values) {
-            max = Math.max(max, value);
-            min = Math.min(min, value);
-        }
-
-        // For single value, skew is 1.0 (no skew)
-        if (values.length == 1) return 1.0;
-
-        return max > 0 ? (double) max / min : 0;
-    }
-
     private long getRecommendedMaxSegmentSize(long shardSizeBytes) {
         if (shardSizeBytes < 100 * 1024 * 1024) { // < 100MB
             return 50 * 1024 * 1024; // 50MB