Remove the job_control_forwarding logic as we want *any* signal to go to all members of the process group

Refs trac:4404

This commit was SVN r31094.

The following Trac tickets were found above:
  Ticket 4404 --> https://svn.open-mpi.org/trac/ompi/ticket/4404

orte/mca/odls/default/odls_default_module.c

@@ -257,9 +257,6 @@ static int odls_default_kill_local(pid_t pid, int signum)
 {
     pid_t pgrp;
 
-    if (orte_forward_job_control) {
-        pid = -pid;
-    }
     pgrp = getpgid(pid);
     if (-1 != pgrp) {
         /* target the lead process of the process