If you go into your settings>apps. Swipe over to all. Scroll down through your apps. Tap on the ones you want to disable. There should be an option there to disable.
I disabled all mine right away honestly. The only one I didn't is the myAT&T app. I just assumed I didn't need any of em. I didn't need em on my iPhones so I don't think I'll need em on Android.
You're able to. I didn't disable that one but I also didn't give it permission to sync with my contacts. It just kinda sits there doing nothing. I really do miss that about Apple. They don't let carriers put all this nonsense on iPhones.
I disabled my at&t address book (never synced either) and left mobility. Might do more research on it. Its not that big a deal to go in and disable the apps. I don't miss as my iPhone 5 at all.