Looking at the pic, I can see why you are remodeling! The 1980's are calling and want to know where their old woodwork went!
From what you say, let me offer this: If the ceiling joists are parallel to the header, this is probably NOT bearing. Many times, headers are installed per plan in a doorway and are not necessarily bearing. HOWEVER, you need to be certain before removing it outright. Visual inspection in the attic should tell you all you need to know.
To be safe, after temporarily bracing the ceiling, you can remove the header and reinstall it in the attic using the hanger method described by Neal (my evil twin brother). This will re-tie the framing into a supported beam. Remember to carry the point load down to the slab by lengthening the jack stud so it contacts the new placement of the new header.