labs: force LC_ALL=C for ssh

Mac OS X exports LC_CTYPE=UTF-8 to our ssh environment which makes the
keystone install fail (results in a Python traceback complaining about
"unknown locale: UTF-8").

This patch uses LC_ALL=C to override all locale settings.

The previous, limited work-arounds for neutron are no longer needed and
removed.

Change-Id: Ic7a2f5547fc4bd5d512da5197e48366c83c21c24

labs/lib/osbash/functions.host

@@ -93,7 +93,10 @@ function vm_ssh {
 
     check_vagrant_private_key
 
-    ssh -q \
+    # Some operating systems (e.g., Mac OS X) export locale settings to the
+    # target that cause some Python clients to fail. Override with a standard
+    # setting (LC_ALL=C).
+    LC_ALL=C ssh -q \
         -i "$LIB_DIR/vagrant-ssh-keys/vagrant" \
         -o "UserKnownHostsFile /dev/null" \
         -o "StrictHostKeyChecking no" \

labs/scripts/config_external_network.sh

@@ -14,12 +14,6 @@ indicate_current_auto
 # http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron_initial-external-network.html
 #------------------------------------------------------------------------------
 
-# Work around neutron client failing with unsupported locale settings
-if [[ "$(neutron --help)" == "unsupported locale setting" ]]; then
-    echo "Locale not supported on node, setting LC_ALL=C."
-    export LC_ALL=C
-fi
-
 echo "Waiting for neutron to start."
 until neutron net-list >/dev/null 2>&1; do
     sleep 1

labs/scripts/config_tenant_network.sh

@@ -14,12 +14,6 @@ indicate_current_auto
 # http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron_initial-tenant-network.html
 #------------------------------------------------------------------------------
 
-# Work around neutron client failing with unsupported locale settings
-if [[ "$(neutron --help)" == "unsupported locale setting" ]]; then
-    echo "Locale not supported on node, setting LC_ALL=C."
-    export LC_ALL=C
-fi
-
 echo "Waiting for neutron to start."
 until neutron net-list >/dev/null 2>&1; do
     sleep 1