Release 1.0 will be recommending Docker installs with Orthanc, with the only other supported (but not recommended) option is an install on Linux with Orthanc.
Using the built-in Store SCP function has never been recommended, but I have heard of some users making use of it - however I think that was only because it was easier than setting up Orthanc. That reasoning doesn’t exist with a Docker setup where it is all done automatically.
Removing the function would remove code that is not tested or used by the maintainers, which would be good. It would also reduce the fields and functions required in the web interface - the ‘last status’ message for example is confusing when you are using conquest.