Synchronize IB: needed due to the streamerInfo changes in c6e4e00
Remove checkEqual: not used for the moment

This avoids fetching payloads for the moment, although we may
still put back again the equal operator, regardless of this.

The internal validation is not concerned about this: we will
use a binary diff on old-format SQLite files.
Merge pull request #2900 from ojeda/bio-sync

BOOSTIO -- Synchronize IB: needed due to the streamerInfo changes in c6e4e00