Hide or Delete Section Line

Howdy, You should be able to change the Layer of the Section Line to one that can be turned off.
Hope that helps

One trick to do the above:
copy (ctrl-c) the view that you want to section, (but do not want the section line), and paste in an unused corner or just off the drawing sheet (esentially, creating a duplicate view). Add the section line to that view and create your section. Break the alignment on your newly created section view and align it with the other view you copied. Right click the "fake" view that has the section view and select "hide view". When the dialog box asks if you want to hide related views, select "no" or your newly created section view will hide as well. Now you have the illusion that you are looking for in that you have a section view, but no section line.
IYM