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

testing/tests/ikev2/ip-split-pools-db/posttest.dat

@@ -3,4 +3,3 @@ dave::ipsec stop
 moon::ipsec stop
 moon::ipsec pool --del pool0 2> /dev/null
 moon::ipsec pool --del pool1 2> /dev/null
-moon::rm /etc/ipsec.d/ipsec.*