Revert #79 since it's causing regressions

See https://github.com/lxc/lxd/issues/6913

driver/driver.go

@@ -273,16 +273,6 @@ func (d *Driver) Open(uri string) (driver.Conn, error) {
 		return nil, errors.Wrap(err, "failed to open database")
 	}
 
-	// TODO: this is a workaround to force the raft log to be replayed. It
-	// should instead be fixed in dqlite by executing a barrier.
-	// See https://github.com/canonical/dqlite/issues/210.
-	conn.request.Reset()
-	conn.response.Reset()
-	if _, err := conn.ExecContext(ctx, "PRAGMA ignored_pragma", nil); err != nil {
-		conn.protocol.Close()
-		return nil, errors.Wrap(err, "force initial raft log replay")
-	}
-
 	return conn, nil
 }