EKRA_ADE.BGL contains quite a number of stock navaids.
It probably doesn't matter at all beyond making duplicates on the FSX map, but from recent experience, having worked on updating RW numbers, navaids and - not least - adding RW10 ILS to EKSP Skrydstrup, I know that it can lead to unexpected results if other scenery includes more or less orphaned bits of navaids belonging to other airports/facilities. I had two other AFCADS installed that contained Skrydstrup ILS code (not Skrydstrup AFCADS mind you, but other Danish airports, and none of them by Vidan
), which led to my updates not being available to the sim (maybe because my ILS is the modified version and the others are stock, no idea), and it took me a bit of time to discover why this happened.
In my (humble and simple) opinion an airport scenery should not include navaids other than those present on the navigation maps for the airport. All those duplicates don't look pretty on the map either.