*: Simplify the code of executing "CREATE TABLE"

[JaySon-Huang]

What problem does this PR solve?

Issue Number: ref #6233

Problem Summary:

What is changed and how it works?

*: Simplify the code of executing "CREATE TABLE"
Remove the clickhouse code for "CREATE TEMPORARY TABLE"/"CREATE TABLE ... AS ..."/"CREATE Materialized View"

Check List

Tests

• [ ] Unit test
• [ ] Integration test
• [ ] Manual test (add detailed scripts or steps below)
• [ ] No code

Side effects

• [ ] Performance regression: Consumes more CPU
• [ ] Performance regression: Consumes more Memory
• [ ] Breaking backward compatibility

Documentation

• [ ] Affects user behaviors
• [ ] Contains syntax changes
• [ ] Contains variable changes
• [ ] Contains experimental features
• [ ] Changes MySQL compatibility

Release note

None

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JinheLin, Lloyd-Pottiger

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/pingcap/tiflash/blob/master/OWNERS)~~ [JinheLin,Lloyd-Pottiger] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-11-19 02:00:52.42951051 +0000 UTC m=+926414.620379508: :ballot_box_with_check: agreed by Lloyd-Pottiger.
• 2024-11-19 03:14:48.52648056 +0000 UTC m=+930850.717349556: :ballot_box_with_check: agreed by JinheLin.