[Deletion Modes] Remove the old module deletion logic in manifest reconciliation

[nesmabadr]

Description

After introducing #1211, we need to remove the old logic of module deletion which includes the module cr pre deletion hook.

Reasons

As a migration period, we decided to support having the old deletion logic when the deletion mode is empty, so after we introduce the default value of Ignore to the deletionMode, we need to remove the old legacy code.

Acceptance Criteria

• Remove the old legacy code of module CR pre-deletion in the manifest reconciliation

Feature Testing

No response

Testing approach

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Attachments

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