Update documentation to remove variables no longer in use

[mccaffers]

I've updated documentation to remove variables that are no longer in use.

System: Ubuntu 24.04 (ARM)
Version: 9.0.3
Source: /var/lib/questdb/db/log/questdb-rolling.log.20250925

Invalid settings (not recognized, probable typos):
        * line.tcp.writer.queue.size
        * http.response.header.buffer.size
        * cairo.sql.jit.ir.max.pages
        * cairo.wal.commit.squash.row.limit
        * http.query.connection.limit
        * cairo.sql.create.table.model.pool.capacity

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[Copilot]

Pull Request Overview

This pull request removes obsolete configuration parameters from the QuestDB documentation that are no longer recognized by the system in version 9.0.3.

• Removes six deprecated configuration parameters that were causing "Invalid settings" warnings in QuestDB logs
• Cleans up documentation files to align with the current version's supported configuration options

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
documentation/configuration-utils/_wal.config.json	Removes cairo.wal.commit.squash.row.limit parameter
documentation/configuration-utils/_tcp.config.json	Removes line.tcp.writer.queue.size parameter
documentation/configuration-utils/_http.config.json	Removes http.response.header.buffer.size parameter
documentation/configuration-utils/_cairo.config.json	Removes three parameters: cairo.sql.create.table.model.pool.capacity, cairo.sql.jit.rows.threshold, and cairo.sql.jit.ir.max.pages

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[nwoolmer]

Thanks for raising this! One small amendment, then its good to go

[nwoolmer]

This was replaced with:

cairo.sql.jit.ir.memory.max.pages

[nwoolmer]

Deletion not required, just rename