Remove code deprecated in Iceberg 1.2.0

[nastra]

Feature Request / Improvement

Once Iceberg 1.2.0 is out, we should remove all the code that was deprecated and marked for 1.3.0 removal.

Query engine

None

[nastra]

I could handle all the deprecations in the iceberg-core module.

@szehon-ho would you be interested in doing the same for spark 3.3?

[szehon-ho]

Sure, I think @aokolnychyi has done some in #7069, and I did others in #7106 will see if there are more

[nastra]

Handling core deprecations in #7156

[nastra]

I have opened #7489 to remove a deprecated/unused class. It looks like the only other class with @deprecated will be removed in 1.3.0 is VectorizedSparkParquetReaders.

[nastra]

The last piece that we need to get in is #7591

[amogh-jahagirdar]

Closing since all relevant code deprecation removals are complete!

[szehon-ho]

Thanks so much @amogh-jahagirdar !