Remove redundant explicit super() constructor calls iluwatar#694

Author: olcbean

cqrs/src/main/java/com/iluwatar/cqrs/domain/model/Author.java

@@ -56,7 +56,6 @@ public Author(String username, String name, String email) {
   }
 
   protected Author() {
-    super();
   }
 
   public long getId() {

cqrs/src/main/java/com/iluwatar/cqrs/domain/model/Book.java

@@ -58,7 +58,6 @@ public Book(String title, double price, Author author) {
   }
 
   protected Book() {
-    super();
   }
 
   public long getId() {

cqrs/src/main/java/com/iluwatar/cqrs/dto/Author.java

@@ -51,7 +51,6 @@ public Author(String name, String email, String username) {
   }
 
   public Author() {
-    super();
   }
 
   public String getName() {

cqrs/src/main/java/com/iluwatar/cqrs/dto/Book.java

@@ -47,7 +47,6 @@ public Book(String title, double price) {
   }
 
   public Book() {
-    super();
   }
 
   public String getTitle() {

event-aggregator/src/main/java/com/iluwatar/event/aggregator/KingsHand.java

@@ -30,7 +30,6 @@
 public class KingsHand extends EventEmitter implements EventObserver {
 
   public KingsHand() {
-    super();
   }
 
   public KingsHand(EventObserver obs) {

event-aggregator/src/main/java/com/iluwatar/event/aggregator/LordBaelish.java

@@ -30,7 +30,6 @@
 public class LordBaelish extends EventEmitter {
 
   public LordBaelish() {
-    super();
   }
 
   public LordBaelish(EventObserver obs) {

event-aggregator/src/main/java/com/iluwatar/event/aggregator/LordVarys.java

@@ -30,7 +30,6 @@
 public class LordVarys extends EventEmitter {
 
   public LordVarys() {
-    super();
   }
 
   public LordVarys(EventObserver obs) {

event-aggregator/src/main/java/com/iluwatar/event/aggregator/Scout.java

@@ -30,7 +30,6 @@
 public class Scout extends EventEmitter {
 
   public Scout() {
-    super();
   }
 
   public Scout(EventObserver obs) {