Move nf_conntrack_max configuration to the firewalld role

net.netfilter.nf_conntrack_max is only relevant if the firewall is configured, so it make more sense to move it to the firewalld role.

Closes #648 (closed)

approved this merge request

added 6 commits

• 2260581d...01ed4375 - 5 commits from branch archlinux:master
• 6d1f4c1b - Move nf_conntrack_max configuration to the firewalld role

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approved this merge request

mentioned in commit 090a3eda

merged manually