Install Nova Launcher Prime, (it is a paid feature), and in Nova Launcher Settings, go to... App& widget drawers > Hide apps.... here you can just place a check mark against the apps that you want hidden.
EDIT: My bad. You meant TouchWiz. See cbreze post below,
I don't think TW has the "hide" option. You should be able to put them in a special folder, label it "junk" or something. I don't use TW at all so not 100% sure but NOVA with the prime upgrade is a much better solution.