Remove default implementation of withoutSmallFileThreshold

[findepi]

The default implementation did not do anything, which is not suitable for the test.

[raunaqmorarka]

There can be connectors like mongoDB where we're testing reduction in physical data read due to projection and predicate pushdown but the small file optimization doesn't apply there

[findepi]

Can you add a code comment in withoutSmallFileThreshold explaining why default impl isn't needed?

also, if it's sometimes not needed, and sometimes it is needed, it\d be better not to have default implementation still, and have a no-op impl for connectors where this is suitable

[raunaqmorarka]

Can you add a code comment in withoutSmallFileThreshold explaining why default impl isn't needed?

also, if it's sometimes not needed, and sometimes it is needed, it\d be better not to have default implementation still, and have a no-op impl for connectors where this is suitable

It looks like this change is fine for now as MongoDb is skipping this test. We can let connectors add no-op implementation if needed later.

[findepi]

( just rebased, no other changes )