Remove USE_SSL support

tls-proxy is the way we're now doing a standard install using https
between services. There is a lot more work to make services directly
handle https, and having python daemons do that directly is a bit of
an anti pattern. Nothing currently tests this in project-config from
my recent grepping, so in the interest of long term maintenance,
delete it all.

Change-Id: I910df4ceab6f24f3d9c484e0433c93b06f17d6e1
diff --git a/lib/placement b/lib/placement
index 4cc5cd8..a29784b 100644
--- a/lib/placement
+++ b/lib/placement
@@ -40,7 +40,7 @@
 # yet merged in nova but is coming soon.
 PLACEMENT_DB_ENABLED=$(trueorfalse False PLACEMENT_DB_ENABLED)
 
-if is_ssl_enabled_service "placement-api" || is_service_enabled tls-proxy; then
+if is_service_enabled tls-proxy; then
     PLACEMENT_SERVICE_PROTOCOL="https"
 fi
 
@@ -72,12 +72,6 @@
     nova_bin_dir=$(get_python_exec_prefix)
     placement_api_apache_conf=$(apache_site_config_for placement-api)
 
-    # reuse nova's cert if a cert is being used
-    if is_ssl_enabled_service "placement-api"; then
-        placement_ssl="SSLEngine On"
-        placement_certfile="SSLCertificateFile $NOVA_SSL_CERT"
-        placement_keyfile="SSLCertificateKeyFile $NOVA_SSL_KEY"
-    fi
     # reuse nova's venv if there is one as placement code lives
     # there
     if [[ ${USE_VENV} = True ]]; then
@@ -149,9 +143,6 @@
 # install_placement() - Collect source and prepare
 function install_placement {
     install_apache_wsgi
-    if is_ssl_enabled_service "placement-api"; then
-        enable_mod_ssl
-    fi
 }
 
 # start_placement_api() - Start the API processes ahead of other things