Change some DAVdroid leftovers to DAVx⁵; remove Lombok config (thanks @mbiebl)

3 jobs from master-ose in 10 minutes and 23 seconds
Status Job ID Name Coverage
  Test
passed #147503323
pages

00:05:50

passed #147503321
test

00:10:23

 
  Deploy
passed pages:deploy

00:00:11