Remove temporary test function

Author: chihsinh

src/test/java/org/apache/sysds/test/functions/rewrite/RewriteSimplifyUnionDistinctTest.java

@@ -41,11 +41,6 @@ public void setUp() {
 		addTestConfiguration(TEST_NAME, new TestConfiguration(TEST_CLASS_DIR, TEST_NAME, new String[] {"R"}));
 	}
 
-	@Test
-	public void testPrint() {
-		System.out.println("Test rewriteSimplifyUnionDistinct");
-	}
-
 	@Test
 	public void testUnionDistinctNoRewrite() {
 		testRewriteSimplifyUnionDistinct(2, false);