modify code

src/class05/Code04_DoubleLinkedListQuickSort.java

@@ -173,16 +173,11 @@ public class Code04_DoubleLinkedListQuickSort {
 					L.last = rt;
 					rt = L;
 				}
-			} else {
-				if (eh == null) {
-					eh = L;
-					et = L;
 			} else {
 				et.next = L;
 				L.last = et;
 				et = L;
 			}
-			}
 			L = tmp;
 		}
 		return new Info(lh, lt, ls, rh, rt, rs, eh, et);