It turns out that we ''can'' get to the endpoint destructor with the
endpoint still on the "endpoints needing ACKs" list. So if it's on
the list, remove it first, and then DESTRUCT the opal_list_item_t.
This prevents an assert() fail in debug builds. We'd like to let this
soak over the weekend.
cmr=v1.8.2:reviewer=dgoodell
This commit was SVN r32546.