Rubberduckzilla Please stop trying to mess with system apps and trying to disable or adjust their permissions. The fact that you may be able to do it for some apps, doesn't mean you should.
This is not Stock OS where you feel like you have to go through and start disabling stuff. If it's there, it's there for a good reason.
What you're trying to remove handles emergency calls. All of these things are part of the OS and not meant to be touched by the end user.
Messing with those is likely to result in you breaking something, and it will be very hard for us to figure out what when we don't know which apps you've touched.