Revert^3 "创建推荐模块文件夹"

This reverts commit cfefa3a6bf40abf925859495a08155e70fd7915c.

Reason for revert: <revert again>

Change-Id: I82f75efedcc2861e052c356e6e9ba613a7b8b90b
diff --git a/recommend/hello.py b/recommend/hello.py
deleted file mode 100644
index c6d4e16..0000000
--- a/recommend/hello.py
+++ /dev/null
@@ -1 +0,0 @@
-print("Hello G10!")