diff --git a/functions-common b/functions-common
index e890b75d13..a96c702728 100644
--- a/functions-common
+++ b/functions-common
@@ -499,13 +499,6 @@ function is_arch {
     [[ "$(uname -m)" == "$1" ]]
 }
 
-# Quick check for a rackspace host; n.b. rackspace provided images
-# have these Xen tools installed but a custom image may not.
-function is_rackspace {
-    [ -f /usr/bin/xenstore-ls ] && \
-        sudo /usr/bin/xenstore-ls vm-data | grep -q "Rackspace"
-}
-
 # Determine if current distribution is a Fedora-based distribution
 # (Fedora, RHEL, CentOS, etc).
 # is_fedora