
Remove code for multiple OOB progress threads as it is an optimization nobody uses. Also turns out to have a race condition that can cause segfault on finalize, so maybe good that nobody is using it. Signed-off-by: Ralph Castain <rhc@pmix.org> (cherry picked from commit 41eb41c3f224abcacec78f4d77c138197c36f172) (cherry picked from commit a2f35c1834ab2fcb216285621d177a179e33dfe7)