Manage Security Roles from A Report

I made a copy of the report and moved it to a new workspace. I then opened the report in desktop, in attempt to remove row-level security. On the modeling tab of the report, the manage roles option is grayed out. I assume this is becase we use a live connection to the dataset. And that dataset controls access.  I feel like this puts me back in my original predicament of possibly needing to create a second version of my dataset. Is there any way to ensure row-level security is not applied without changing the dataset?