Remove visual noise from crashrep

Change-Id: I9e13aa176cf6ca1d97e52d059423fc59018671f5
Reviewed-on: https://gerrit.libreoffice.org/8249
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>