Up tends to clutter writing as a crutch of the thoughtless writer. Do shoelaces need to be tied up or just tied, do people wake up or wake (or awaken), are ideas thought up or thought? The list goes on but the point is made. Not a bad word by itself, up requires vetting when following a verb. Sometimes it is necessary (to catch up does not match to catch) but often it is not. Read the phrase to which you have included it and ask yourself whether the meaning remains the same without the up. If it does, cut the fluff.