Moved origin/cp-main to upstream v2.90 version

Following are the commands used to move to the v2.90
upstream version in the dnsmasq directory:
  1. git remote add upstream http://thekelleys.org.uk/git/dnsmasq.git
  2. git remote -v show
  3. git fetch upstream
  4. git diff origin/cp-main v2.90 > ../dnsmasq_to_v2.90.gitdiff
  5. patch -p1 < ../dnsmasq_to_v2.90.gitdiff
  6. git add . && git commit -m "Moved origin/cp-main to upstream v2.90 version"
  7. git diff v2.90 - Should be empty

Change-Id: I167f369cc3c625e7d291b296950fe98aa8f7d513
diff --git a/debian/dnsmasq-base.postrm b/debian/dnsmasq-base.postrm
index 98b10a4..c5ad3ad 100644
--- a/debian/dnsmasq-base.postrm
+++ b/debian/dnsmasq-base.postrm
@@ -2,10 +2,9 @@
 set -e
 
 if [ purge = "$1" ]; then
-   if [ -x "$(command -v deluser)" ]; then
-     deluser --quiet --system dnsmasq > /dev/null || true
-  else
-     echo >&2 "not removing dnsmasq system account because deluser command was not found"
-  fi
+  userdel dnsmasq
   rm -rf /run/dnsmasq
 fi
+
+#DEBHELPER#
+