Fix build: Revert "Update some of the testvectors to v3"
Fix build: Revert "Update some of the testvectors to v3"

This reverts commit 33429bd6f77331826c8f0e88ad4b9c90fb75d380.

nrizzio/Signal-Desktop,nrizzio/Signal-Desktop,nrizzio/Signal-Desktop,nrizzio/Signal-Desktop