Revert "Allocate pseudo tty for ssh"

Reason: extra error messages when running "onos-test"
Pseudo-terminal will not be allocated because stdin is not a terminal.


This reverts commit 6ac0d554b020290daa7af6f8e25d27b8b61a9eb5.

Change-Id: I509b9e9dc941e1e7d281457693b1b74a5eb621e3
diff --git a/tools/test/bin/onos-service b/tools/test/bin/onos-service
index d7b0a08..d5fabe5 100755
--- a/tools/test/bin/onos-service
+++ b/tools/test/bin/onos-service
@@ -40,5 +40,5 @@
 
 # Execute the remote commands
 for node in $nodes; do
-    ssh -t $ONOS_USER@${node} "sudo service onos ${2:-status}"
+    ssh $ONOS_USER@${node} "sudo service onos ${2:-status}"
 done