Lookup/Heartbeat via vendor passthru was deprecated in Newton.
This patch removes the corresponding functionality from IPA,
and also removes handling of 'ipa-driver-name' kernel parameter,
as it was only used in code related to old passthru.
Change-Id: I2c7989063ab3e4c0bae33f05d6d2ed857a2d9944
Closes-Bug: #1640533