Remove support for End Of Life (EOL) Fedora 22

Fedora 22 reaches its EOL on 19-JUL-2016[1].  Remove it as
officially supported distribution.

The current two supported Fedora distributions are Fedora 23 and Fedora
24.  (Change Ia4a58de4973ef228735c48b33453a0562dc65258 already added
support for Fedora 24.)

[1] https://fedoramagazine.org/fedora-22-end-of-life-2016-july/

Change-Id: I5b4e1ddb6165a9065e80e84175246678a7356f18
diff --git a/files/rpms/swift b/files/rpms/swift
index 1e05167..bd249ee 100644
--- a/files/rpms/swift
+++ b/files/rpms/swift
@@ -2,7 +2,7 @@
 liberasurecode-devel
 memcached
 pyxattr
-rsync-daemon # dist:f22,f23,f24
+rsync-daemon # dist:f23,f24
 sqlite
 xfsprogs
 xinetd