I'd like to propose moving DSpace-LNI to a separate project in GitHub. In other words, moving this entire codebase: https://github.com/DSpace/DSpace/tree/master/dspace-lni to a separate GitHub project named "DSpace/dspace-lni"
This would in effect mean that LNI is no longer an "out-of-the-box" feature in DSpace. But, at this point in time, any tasks you can do via LNI are likely easier done via another interface (SWORD, REST, etc). Plus, LNI has not been actively maintained for some time (other than to fix Maven build issues or similar). Here's the recent history of changes to dspace-lni:
Even though LNI would be a separate GitHub project, individuals or institutions could still add it to their DSpace manually or fork it to customize/maintain it over the long term.