No, they haven't done that yet. It's just a proposal, but it's not likely to be formally stopped until 2035.
The reason we've stopped having leap seconds is because the drift between TAI and UT1 slowed down and has actually been very slowly drifting in the other direction.
The reason we've stopped having leap seconds is because the drift between TAI and UT1 slowed down and has actually been very slowly drifting in the other direction.