Hotfix: Disable burn on 0.9.42

[rakanalh]

Description

This hotfix will be used for a runtime upgrade to 0.9.42 without the burn enabled.

Types of Changes

• Tech Debt (Code improvements)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Dependency upgrade (A change in substrate or any 3rd party crate version)

Migrations and Hooks

• This change requires a runtime migration.
• Modifies on_initialize
• Modifies on_finalize

Checklist

• Change has been tested locally.
• Change adds / updates tests.
• Changelog doc updated.