chore: remove default Maven and Gradle project files

second-part/hw-02/user-service/src/main/java/com/example/App.java

@@ -1,10 +0,0 @@
-package com.example;
-
-/**
- * Hello world!
- */
-public class App {
-    public static void main(String[] args) {
-        System.out.println("Hello World!");
-    }
-}

second-part/hw-02/user-service/src/test/java/com/example/AppTest.java

@@ -1,19 +0,0 @@
-package com.example;
-
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-import org.junit.jupiter.api.Test;
-
-/**
- * Unit test for simple App.
- */
-public class AppTest {
-
-    /**
-     * Rigorous Test :-)
-     */
-    @Test
-    public void shouldAnswerWithTrue() {
-        assertTrue(true);
-    }
-}