SERVER-137869 will update the write path (`analyze`) to choose sample sizes set in collMod over the knob configuration if set.

The read path needs to mirror that logic and respect samples set via collMod as well. If not, samples that are smaller than the knob configuration will be rejected even when they are the correct size (set by collMod). This means the read path will silently fall back to on-the-fly sampling, wasting resources.

For this ticket, we want to update the read path to respect sample sizes set by collMod to avoid this happening.