Revert^4 "创建推荐模块文件夹"

This reverts commit a14b19ee3814e8cf1f4e1e9870a9ec984c5ac6c2.

Reason for revert: <recover>

Change-Id: Iea93add2cca6ddf9cacd0735353f7e72edec4449
diff --git a/recommend/hello.py b/recommend/hello.py
new file mode 100644
index 0000000..c6d4e16
--- /dev/null
+++ b/recommend/hello.py
@@ -0,0 +1 @@
+print("Hello G10!")