Remove confusing log "ignoring unsolicited response Recent(…)" (#3934)

It doesn't seem to add value and gives the impression that something
went wrong.

CHANGELOG.md

@@ -9,6 +9,7 @@
 - Compress `mime_headers` column with HTML emails stored in database
 - Strip BIDI characters in system messages, files, group names and contact names #3479
 - maybe_add_time_based_warnings(): Use release date instead of the provider DB update one
+- Remove confusing log line "ignoring unsolicited response Recent(…)" #3934
 - Cleanly terminate deltachat-rpc-server.
   Also terminate on ctrl-c.
 - Refactorings #4317