Hi!
It is a good question.
You can create a filter to your module in order to avoid assessing quality to the requirements. In RQA, go to the Project Configuration tab and then click on the Modules button. Select the module and open its properties (right-click or double-click).
The properties window has a section to create this filter, using an attribute from the requirements in DOORS. In this case (see the first screenshot), I setup a filter saying that the Object Text of the requirement cannot be empty.
Then, the scoreboard of requirements will hide the requirements not matching the filters. The requirements will no be assessed anymore.
Hope you find this information useful.