[Python] Remove workaround that excluded struct types from `chunked_arrays`

[HyukjinKwon]

Describe the enhancement requested

The chunked_arrays hypothesis strategy had a workaround that excluded struct types with the assumption that field metadata is not preserved (added from d06c664).

Testing confirms that field metadata is now correctly preserved in chunked arrays with struct types, so the workaround is no longer necessary, and it is fixed by dd0988b

Now it explicitly calls CChunkedArray::Make() instead of manual construction of CChunkedArray.

Component(s)

Python

[adamreeve]

Issue resolved by pull request #48443