docs: delete unused documents (#31)

* docs: delete unused documents

* Update src/SUMMARY.md

Co-authored-by: Justin Starry <justin.m.starry@gmail.com>

Author: twchn

docs/src/SUMMARY.md

@@ -38,4 +38,3 @@
 * [Testing](more/testing.md)
 * [External Libs](more/external-libs.md)
 * [web-sys](more/web-sys.md)
-