Remove Glance uWSGI config in clean.sh

Updated clean.sh to remove Glance's Apache uWSGI config files in
APACHE_CONF_DIR, including /etc/apache2/sites-enabled/ on Ubuntu.

Test Plan:
- Run clean.sh.
- Confirm Glance uWSGI configs are removed from APACHE_CONF_DIR.

Closes-Bug: #2057999

Change-Id: I44475b8e084c4b20d7b7cb7f28574f797dbda7a2

lib/glance

@@ -168,6 +168,7 @@ function cleanup_glance {
         # Cleanup reserved stores directories
         sudo rm -rf $GLANCE_STAGING_DIR $GLANCE_TASKS_DIR
     fi
+    remove_uwsgi_config "$GLANCE_UWSGI_CONF" "$GLANCE_UWSGI"
 }
 
 # Set multiple cinder store related config options for each of the cinder store

lib/host

@@ -95,4 +95,4 @@ function configure_host_net {
 function tune_host {
     configure_host_mem
     configure_host_net
-}
+}