Removing ad-hoc implementation of encode_arrow_schema #17542
Description
Is your feature request related to a problem or challenge?
The implementation of encode_arrow_schema is now included and exposed by arrow-rs (see: apache/arrow-rs#6916). The datafusion ad-hoc implementation is not needed anymore
Describe the solution you'd like
Remove the ad-hoc datafusion implementation of encode_arrow_schema.
Describe alternatives you've considered
No response
Additional context
No response