Get rid of unneeded type on data mappers.

Author: android10

data/src/main/java/com/fernandocejas/android10/sample/data/entity/mapper/UserEntityDataMapper.java

@@ -60,7 +60,7 @@ public User transform(UserEntity userEntity) {
    * @return {@link User} if valid {@link UserEntity} otherwise null.
    */
   public List<User> transform(Collection<UserEntity> userEntityCollection) {
-    List<User> userList = new ArrayList<User>(20);
+    List<User> userList = new ArrayList<>(20);
     User user;
     for (UserEntity userEntity : userEntityCollection) {
       user = transform(userEntity);

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/mapper/UserModelDataMapper.java

@@ -63,7 +63,7 @@ public Collection<UserModel> transform(Collection<User> usersCollection) {
     Collection<UserModel> userModelsCollection;
 
     if (usersCollection != null && !usersCollection.isEmpty()) {
-      userModelsCollection = new ArrayList<UserModel>();
+      userModelsCollection = new ArrayList<>();
       for (User user : usersCollection) {
         userModelsCollection.add(transform(user));
       }