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/swift b/lib/swift
index 5eac904..d764b25 100644
--- a/lib/swift
+++ b/lib/swift
@@ -31,7 +31,7 @@
 # Defaults
 # --------
 
-if is_ssl_enabled_service "s-proxy" || is_service_enabled tls-proxy; then
+if is_service_enabled tls-proxy; then
     SWIFT_SERVICE_PROTOCOL="https"
 fi
 
@@ -398,13 +398,6 @@
         iniset ${SWIFT_CONFIG_PROXY_SERVER} DEFAULT bind_port ${SWIFT_DEFAULT_BIND_PORT}
     fi
 
-    if is_ssl_enabled_service s-proxy; then
-        ensure_certificates SWIFT
-
-        iniset ${SWIFT_CONFIG_PROXY_SERVER} DEFAULT cert_file "$SWIFT_SSL_CERT"
-        iniset ${SWIFT_CONFIG_PROXY_SERVER} DEFAULT key_file "$SWIFT_SSL_KEY"
-    fi
-
     # DevStack is commonly run in a small slow environment, so bump the timeouts up.
     # ``node_timeout`` is the node read operation response time to the proxy server
     # ``conn_timeout`` is how long it takes a connect() system call to return