Delete BookServiceImpl.java

bookstore/src/main/java/com/hexagonal/service/BookServiceImpl.java

@@ -1,35 +0,0 @@
-package com.hexagonal.service;
-
-import java.util.List;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import com.hexagonal.domain.Book;
-import com.hexagonal.repository.BookRepository;
-
-@Service
-public class BookServiceImpl implements BookService {
-
-    @Autowired
-    private BookRepository bookRepository;
-
-    @Override
-    public void addBook(Book book) {
-        bookRepository.add(book);
-
-    }
-
-    @Override
-    public Book buyBook(String isbn) {
-
-        return bookRepository.buy(isbn);
-    }
-
-    @Override
-    public List<Book> listBooks() {
-
-        return bookRepository.list();
-    }
-
-}