It's not that easy bro. You would end up with lots of extra stuff, aside from it being a HUGE upload for me, ha....So, what you should do is just download a custom rom (zip) and using something like Solid Explorer, you can just browse through the zip and take what u think you're missing (obviously don't flash the rom...even though in the end, you just may end up having too). Anyways, make your system folder r/w-able first though. And from now on, use NoBloat from the play store when you wanna start pressing your DELETE button!!