Remove unused write type from DeltaLakeTableHandle

[chenjian2664]

Description

The write type UPDATE and DELETE are not used anywhere

Additional context and related issues

Release notes

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## Section
* Fix some things. ({issue}`issuenumber`)

[Copilot]

Pull request overview

This PR simplifies the Delta Lake connector’s DeltaLakeTableHandle by removing unused write-type variants and associated unused handle fields, and updates production/test call sites to match the new constructor/shape.

Changes:

• Removed UPDATE/DELETE from DeltaLakeTableHandle.WriteType.
• Removed unused updatedColumns / updateRowIdColumns fields and their JSON properties/accessors from DeltaLakeTableHandle.
• Updated DeltaLakeMetadata and multiple tests to use the updated DeltaLakeTableHandle constructors/APIs.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/DeltaLakeTableHandle.java	Removes unused write types and update-related columns from the handle; updates constructor/serialization accordingly.
plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/DeltaLakeMetadata.java	Adjusts DeltaLakeTableHandle instantiations to the new constructor signature.
plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/statistics/TestDeltaLakeFileBasedTableStatisticsProvider.java	Updates test handle construction and usage to removed handle fields.
plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/TestingDeltaLakeUtils.java	Updates test utility handle construction to match new signature.
plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/TestTransactionLogAccess.java	Updates test handle construction to match new signature.
plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/TestDeltaLakeSplitManager.java	Updates test handle construction to match new signature.
plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/TestDeltaLakeNodeLocalDynamicSplitPruning.java	Updates test handle construction to match new signature.
plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/TestDeltaLakeMetadata.java	Updates helper handle construction to remove references to removed write types/fields.

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[ebyhr]

Thanks, I was thinking the same fix in my previous PR, but I was lazy.

[findinpath]

What is the purpose of having an enum with one value?

Consider using a boolean field with a meaningful name instead

[chenjian2664]

Added eafc80b