Temporary remove mqtt bindings that make travis build to fail

Signed-off-by: Joan Pujol <[email protected]>

bundles/pom.xml

@@ -181,10 +181,12 @@
     <module>org.openhab.binding.modbus.helioseasycontrols</module>
     <module>org.openhab.binding.monopriceaudio</module>
     <module>org.openhab.binding.mpd</module>
+    <!--
     <module>org.openhab.binding.mqtt</module>
     <module>org.openhab.binding.mqtt.generic</module>
     <module>org.openhab.binding.mqtt.homeassistant</module>
     <module>org.openhab.binding.mqtt.homie</module>
+-->    
     <module>org.openhab.binding.mystrom</module>
     <module>org.openhab.binding.nanoleaf</module>
     <module>org.openhab.binding.neato</module>