[CLNP-6874] No mark as delivered if disableMarkAsDelivered is set to true

[chrisallo]

[fix]: No mark as delivered if disableMarkAsDelivered is set to true

Fixes CLNP-6874

Changelogs

• Fixed a bug that channel is marked as delivered with disableMarkAsDelivered set to true

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[danney-chun]

lgtm~