ada_server: remove adaServer.o from OBJS
ada_server: remove adaServer.o from OBJS

The adaServer.o is explicitly mentioned in rules already for linking
proposes. So do not duplicate it in OBJS.

Fixes: 18942238fcff ("ada_server: make OBJS more readable")

BeeeOn/server,BeeeOn/server,BeeeOn/server,BeeeOn/server