Clean up KS-Test.
diff --git a/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java b/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java
index e69d688..8efeb33 100644
--- a/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java
+++ b/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java
@@ -27,8 +27,6 @@
 
 import org.testng.annotations.Test;
 
-import org.apache.datasketches.SketchesArgumentException;
-
 @SuppressWarnings("javadoc")
 public class KolmogorovSmirnovTest {