chore: remove deprecated file

Author: yanglbme

.gitattributes

@@ -0,0 +1,8 @@
+/**
+ * @author yanglbme
+ */
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("互联网 Java 工程师进阶知识完全扫盲");
+    }
+}