testing: Reduce runtime of all tests that use SQLite databases by storing them in ramfs

testing/tests/tnc/tnccs-20-os/posttest.dat

@@ -5,4 +5,3 @@ moon::iptables-restore < /etc/iptables.flush
 carol::iptables-restore < /etc/iptables.flush
 dave::iptables-restore < /etc/iptables.flush
 carol::echo 1 > /proc/sys/net/ipv4/ip_forward
-moon::umount /etc/pts