remove debug message

Author: broken1arrow

src/main/java/org/brokenarrow/menu/library/MenuUtility.java

@@ -622,7 +622,6 @@ protected void changePage(final boolean nextPage) {
 
 	protected void updateButtons() {
 		this.slotIndex = this.getPageNumber() * numberOfFillitems;
-		System.out.println("updateButtons this.slotIndex " + this.slotIndex);
 		addItemsToCache(this.getPageNumber());
 		this.slotIndex = 0;
 		reddrawInventory();