test: remove obsolete tests from orte/test/mpi

Those tests were likely built on a previous Open MPI version
and cannot even build.

Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>

Author: ggouaillardet

orte/test/mpi/Makefile

@@ -4,7 +4,7 @@ PROGS = mpi_no_op mpi_barrier hello hello_nodename abort multi_abort simple_spaw
 		crisscross read_write ziatest slave reduce-hang ziaprobe ziatest bcast_loop \
 		parallel_w8 parallel_w64 parallel_r8 parallel_r64 sio sendrecv_blaster early_abort \
 		debugger singleton_client_server intercomm_create spawn_tree init-exit77 mpi_info \
-		info_spawn server client paccept pconnect ring hello.sapp binding badcoll attach xlib \
+		info_spawn server client ring binding badcoll attach xlib \
 		no-disconnect nonzero interlib pinterlib add_host
 
 all: $(PROGS)