Remove debugging print statement from PagingControlsSkin.

The `System.out.println` used for debugging column and percentage width was removed to clean up the code. This ensures no unnecessary logging is present in production.

gemsfx/src/main/java/com/dlsc/gemsfx/skins/PagingControlsSkin.java

@@ -257,8 +257,6 @@ private void updateView() {
         pageButtonsGridPane.getColumnConstraints().clear();
 
         double percentageWidth = 100d / (double) column;
-        System.out.println("column: " + column + ", percentage width: " + percentageWidth);
-
         for (int i = 0; i < column; i++) {
             ColumnConstraints con = new ColumnConstraints();