doc: add release notes about removal of the deprecatedrpc=exclude_coinbase

Author: theStack

doc/release-notes.md

@@ -55,6 +55,13 @@ Updated RPCs
   previously deprecated in 23.0. (#23508) Information on soft fork status is
   now only available via the `getdeploymentinfo` RPC.
 
+- The `deprecatedrpc=exclude_coinbase` configuration option has been removed.
+  The `receivedby` RPCs (`listreceivedbyaddress`, `listreceivedbylabel`,
+  `getreceivedbyaddress` and `getreceivedbylabel`) now always return results
+  accounting for received coins from coinbase outputs, without an option to
+  change that behaviour. Excluding coinbases was previously deprecated in 23.0.
+  (#25171)
+
 Changes to wallet related RPCs can be found in the Wallet section below.
 
 New RPCs