lnwire: remove not working test
lnwire: remove not working test

Validation of the announcements message has been removed and it will
be added in the discovery package latter.

aakselrod/lnd,LightningNetwork/lnd,ddustin/lnd,LightningNetwork/lnd,AndrewSamokhvalov/lnd,ddustin/lnd,aakselrod/lnd,AndrewSamokhvalov/lnd