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
diff --git a/lib/host b/lib/host
index 2fa22e2..a812c39 100644
--- a/lib/host
+++ b/lib/host
@@ -95,4 +95,4 @@
 function tune_host {
     configure_host_mem
     configure_host_net
-}
\ No newline at end of file
+}