Merge bitcoin#32003: doc: remove note about macOS self-signing

c873ab6 doc: remove note about macOS self-signing (fanquake)

Pull request description:

  Followup to bitcoin#31407.

ACKs for top commit:
  Sjors:
    ACK c873ab6
  achow101:
    ACK c873ab6

Tree-SHA512: f51aacf11606fb3c0a5811a0bb2ed8dbddfcf36c9e4ece1ef0f742195d0a9f3b26dd60299c165c90caca8e2ce264922bdb990632f991d1fef53f2274ec3dcb6a

Author: achow101

doc/release-notes-empty-template.md

@@ -32,13 +32,6 @@ Upgrading directly from a version of Bitcoin Core that has reached its EOL is
 possible, but it might take some time if the data directory needs to be migrated. Old
 wallet versions of Bitcoin Core are generally supported.
 
-Running Bitcoin Core binaries on macOS requires self signing.
-```
-cd /path/to/bitcoin-core/bin
-xattr -d com.apple.quarantine bitcoin-cli bitcoin-qt bitcoin-tx bitcoin-util bitcoin-wallet bitcoind test_bitcoin
-codesign -s - bitcoin-cli bitcoin-qt bitcoin-tx bitcoin-util bitcoin-wallet bitcoind test_bitcoin
-```
-
 Compatibility
 ==============