remove saucy support

ubuntu 13.10 is no longer supported by ubuntu. We should remove it.

Change-Id: Ie0f92c3ba5df4848a0ff101ef52139c3a16a9dec
diff --git a/stack.sh b/stack.sh
index 03ecf28..2aa03f7 100755
--- a/stack.sh
+++ b/stack.sh
@@ -142,7 +142,7 @@
 
 # Warn users who aren't on an explicitly supported distro, but allow them to
 # override check and attempt installation with ``FORCE=yes ./stack``
-if [[ ! ${DISTRO} =~ (precise|saucy|trusty|7.0|wheezy|sid|testing|jessie|f19|f20|rhel6|rhel7) ]]; then
+if [[ ! ${DISTRO} =~ (precise|trusty|7.0|wheezy|sid|testing|jessie|f19|f20|rhel6|rhel7) ]]; then
     echo "WARNING: this script has not been tested on $DISTRO"
     if [[ "$FORCE" != "yes" ]]; then
         die $LINENO "If you wish to run this script anyway run with FORCE=yes"