It turns out disabling rpmbuild’s requirement finding is simple.  Add the following to your rpm spec file.
AutoReqProv: no
That’s it.
 
Sources:

  1. http://stackoverflow.com/questions/16598201/disable-rpmbuild-automatic-requirement-finding
  2. http://stackoverflow.com/questions/11418814/where-does-rpm-look-for-dependencies
  3. http://www.rpm.org/max-rpm/s1-rpm-depend-auto-depend.html