If my understanding of your question is right and if it is regarding the document which gets downloaded as shown in the attached screenshot, then I am afraid to let you know that currently there is no configuration to unprint the details tab in the generated document, AFAIK.
This can be treated as an Enhancement as you say all the required details are in an attached file.
Do let us know if you wish to file an enhancement request for this requirement. We will create one on our internal portal on your behalf. However, you will have to take it further by talking to your Pega Account Executive.