0d0e1111 set to UE RX to TX time to 2 as
it was deemed that the UE could sustain this time. However, we noticed a
degradation of performance, so reset the RX to TX time to something
higher to ensure proper performance.

There is no need to restore the asserts, because while the performance
with 2 is not as good as 4, the UE can in principle handle this time.