The PSA sim logs aren't very many lines, so show them during tests

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/tests/psa-client-server/psasim/test/run_test.sh b/tests/psa-client-server/psasim/test/run_test.sh
index 06bcc93..31429c8 100755
--- a/tests/psa-client-server/psasim/test/run_test.sh
+++ b/tests/psa-client-server/psasim/test/run_test.sh
@@ -30,8 +30,8 @@
 
 clean_run
 
-./psa_partition -k > psa_partition.log 2>&1 &
+./psa_partition -k &
 SERV_PID=$!
 wait_for_server_startup
-./psa_client > psa_client.log 2>&1
+./psa_client
 wait $SERV_PID