fix(SUMMARY): delete repeating item

src/SUMMARY.md

@@ -193,14 +193,6 @@
   - [无处不在的迭代器](pitfalls/iterator-everywhere.md)
   - [线程间传递消息导致主线程无法结束](pitfalls/main-with-channel-blocked.md)
 
-- [Rust 最佳实践 doing](practice/intro.md)
-
-  - [日常开发三方库精选](practice/third-party-libs.md)
-  - [命名规范](practice/naming.md)
-  - [代码开发实践 todo](practice/best-pratice.md)
-  - [日志记录 todo](practice/logs.md)
-  - [可观测性监控 todo](practice/observability.md)
-
 - [Rust 最佳实践 doing](practice/intro.md)
 
   - [日常开发三方库精选](practice/third-party-libs.md)