dav: Remove brackets from IPv6 address before use
This is follow up of commit d8556a0d, which removes brackets when mounting over dav/davs schemes, however, the same fix is also needed when mounting over dav+sd/davs+sd schemes.
This is follow up of commit d8556a0d, which removes brackets when mounting over dav/davs schemes, however, the same fix is also needed when mounting over dav+sd/davs+sd schemes.