Merge bitcoin/bitcoin#30547: doc: Update work in progress section in doc/design/libraries.md

f70eb0e doc: Remove reference to resolved issue (Daniela Brozzoni)
b27ef8e doc: Update issue reference for libbitcoinkernel (Daniela Brozzoni)

Pull request description:

  - The discussion of libbitcoinkernel has moved from 24303 to 27587
  - Issue 15732 has been resolved, removing it from the document

ACKs for top commit:
  maflcko:
    ACK f70eb0e

Tree-SHA512: 11b597d9710504010945aae66f7e488403895aa8e1e091f3a8f6737dc128a4fde185daff8d4709cbbb69f454d3a649c4217e82a6bfc8ee2b25c8a1c047b57f1b

Author: fanquake

doc/design/libraries.md

@@ -109,5 +109,4 @@ class bitcoin-qt,bitcoind,bitcoin-cli,bitcoin-wallet bold
 
 ## Work in progress
 
-- Validation code is moving from *libbitcoin_node* to *libbitcoin_kernel* as part of [The libbitcoinkernel Project #24303](https://github.com/bitcoin/bitcoin/issues/24303)
-- Source code organization is discussed in general in [Library source code organization #15732](https://github.com/bitcoin/bitcoin/issues/15732)
+- Validation code is moving from *libbitcoin_node* to *libbitcoin_kernel* as part of [The libbitcoinkernel Project #27587](https://github.com/bitcoin/bitcoin/issues/27587)