Minor change: Remove spurious line.

Author: Gilles Sadowski

commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/optim/linear/SimplexSolverTest.java

@@ -1047,7 +1047,6 @@ public void testMath1674() throws Exception {
 
         final PointValuePair resultOriginal = solve(c, constraints);
         final double z1 = resultOriginal.getValue();
-        System.out.println("z1=" + z1); // XXX REMOVE
 
         final List<LinearConstraint> shiftedConstraints = new ArrayList<>();
         for (LinearConstraint cons : constraints) {