Fix memory leak while loading priority modules

When we load a module with the LOAD_PRIORITY flag, we remove its entry from
the load order list. Unfortunately, we don't free the memory associated with
entry in the list. This patch corrects that and properly frees the memory for
the module in the list.




git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/1.8@391489 f38db490-d61c-443f-a65b-d21fe96a405b