SERVER-47083 disables the multiversion passthroughs. Once the FCV is bumped to 4.6, we should re-enable them promptly.
We should also re-enable the burn_in_multiversion task (SERVER-47318), and multiversion_sanity_check_gen (SERVER-46830).
SERVER-47719Use migration ID to indicate disabled resumable range deleter
SERVER-46323Update FCV constants throughout server code following 4.4 branch
SERVER-47013Unblacklist replica_sets_multiversion after 4.4.0-rc0
is related to
SERVER-47083Disable multiversion passthroughs until FCV is bumped to 4.6