Remove the core chapter.

Author: ehuss

book.toml

@@ -51,3 +51,4 @@ curly-quotes = true
 "chat/zulip.html" = "/platforms/zulip.html"
 "platforms/zulip/triagebot.html" = "/triagebot/index.html"
 "core/blogs.html" = "/platforms/blogs.html"
+"core/index.html" = "/governance/council.html"

src/SUMMARY.md

@@ -33,7 +33,6 @@
     - [Triagebot Dashboard](./triagebot/triage-dashboard.md)
     - [Zulip Meeting Management](./triagebot/zulip-meeting.md)
     - [Zulip Notifications](./triagebot/zulip-notifications.md)
-- [Core](./core/README.md)
 - [Community](./community/README.md)
     - [State of Rust Survey FAQ](./community/survey-faq.md)
 - [Compiler](./compiler/README.md)