That junk icon looks like it's just a folder. From the looks of it has all of the stock apps which normally can't be uninstalled. You could do one of two things either move the folder to another homepage, or take all the apps out of the folder and the folder will disappear.
Either way just tap and hold till the icons start to wiggle, then you can move it around to where you want it then press the home button to lock everything in place.
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