rooting the phone now, by flashing ZE08.1 is probably your best bet. It'll let you just remove those pesky apps.
Semi-unrelated note: yes messing with the OS, including flashing it, will void your insurance and warranty.... technically. Realistically though it doesn't bc on the off chance that you totally kill it there is no way for them to tell that you did anything to it... lol.
Is there any easy step-by-step guide on rooting the phone? Something that will not involve writing codes. Just software based as you can do with windows phone. I have no experience with writing codes and too chickenhearted to give it a try.