Esri Inc.: Unfortunately, ArcGIS Pro does not support Geometric Overrides, so that tool ("Remove Override"), along with the other tools for managing overrides are not available in ArcGIS Pro.
This essentially means that they are not in the current product plan and there are no other workflow that we can try in ArcGIS Pro. The best way to approach this is by doing it in ArcMap.
As ArcGIS Pro is not able to handle geometric overrides, it is not possible to migrate workflows from ArcMap that include tools like Remove Override. I propose to add support for geometric overrides and their corresponding ArcMap tools in ArcGIS Pro.