Remove requirement for the mosquitto service to be running when built with the --with-mqtt-client flag.

Author: mikebrady

RELEASENOTES-DEVELOPMENT.md

@@ -1,3 +1,10 @@
+Version 5.0-post-dev-10-g3888999d
+==
+* Remove requirement for the `mosquitto` service to be running when Shairport Sync is built with the `--with-mqtt-client` configuration flag. The service does not, in fact, need to be running in every case.
+This reverses a change made in [PR](https://github.com/mikebrady/shairport-sync/pull/2137) at [Version 5.0-dev-161](https://github.com/mikebrady/shairport-sync/blob/development/RELEASENOTES-DEVELOPMENT.md#version-50-dev-161-g5b3659c2).
+
+  Thanks to [David Crook](https://github.com/idcrook) for the [bug report](https://github.com/mikebrady/shairport-sync/issues/2150).
+
 Version 5.0-post-dev-6-gd32d5cb9
 ==
 * Fix handling of missing `const` type qualifier and some follow-on warnings. Thanks to [Rudi Heitbaum](https://github.com/heitbaum) for the [PR](https://github.com/mikebrady/shairport-sync/pull/2146).