dom0/qvm-firewall: eliminate duplicate firewall defaults definition (#599)
dom0/qvm-firewall: eliminate duplicate firewall defaults definition (#599)

This caused ignore of different firewall defaults for TemplateVM.

woju/qubes-core-admin,QubesOS/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,QubesOS/qubes-core-admin,woju/qubes-core-admin