Remove SCREEN_LOGDIR from devstack

SCREEN_LOGDIR has already been deprecated [1]
[1] https://review.openstack.org/#/c/499186

Change-Id: I9970b8ce2fea77a6f6093926f086cc8ccfc6a934

vagrant/provisioning/setup-compute.sh

@@ -29,7 +29,6 @@ OVN_NB_REMOTE=tcp:$OVN_DB_IP:6641
 
 # Enable logging to files.
 LOGFILE=/opt/stack/log/stack.sh.log
-SCREEN_LOGDIR=/opt/stack/log/data
 
 # Use provider network for public.
 Q_USE_PROVIDERNET_FOR_PUBLIC=True

vagrant/provisioning/setup-controller.sh

@@ -32,7 +32,6 @@ OVN_NB_REMOTE=tcp:$ovnip:6641
 
 # Enable logging to files.
 LOGFILE=/opt/stack/log/stack.sh.log
-SCREEN_LOGDIR=/opt/stack/log/data
 
 # Disable the ovn-northd service on the controller node because the
 # architecture includes a separate OVN database server.

vagrant/provisioning/setup-db.sh

@@ -18,7 +18,6 @@ HOSTNAME=$(hostname)
 
 # Enable logging to files.
 LOGFILE=/opt/stack/log/stack.sh.log
-SCREEN_LOGDIR=/opt/stack/log/data
 DEVSTACKEOF
 
 devstack/stack.sh

vagrant/provisioning/setup-vtep.sh

@@ -23,7 +23,6 @@ OVN_NB_REMOTE=tcp:$OVN_DB_IP:6641
 
 # Enable logging to files.
 LOGFILE=/opt/stack/log/stack.sh.log
-SCREEN_LOGDIR=/opt/stack/log/data
 DEVSTACKEOF
 
 devstack/stack.sh