Just try it and see, I played around with it and got it to a point where everything works fine, the programs I removed from startup are still available.
I first tried removing just about everything and saved that config as 'first attempt' or similar, rebooted, noticed one or two snags so re-added some things, found it all working and saved that as current.
I did save the original config as 'original' so if I messed up I knew I could always take it back to where I started.
Pengineer