In SERVER-75818 we moved the validation check from the create collection coordinator into the shardsvrCreateCollection command. In SERVER-83114 we found that in order to avoid versioning errors we had to keep at least one check of timeseries options in the code even if we end up validating the same data twice. This resulted in leaving the validation check on the coordinator.

The check in particular can be removed once 8.0 is released since we'll have guarantees that there is always one check done by the shardsvr command and the coordinator uses the result of it.