d/control: Remove hardening-wrapper from Build-Depends (Closes: #836622)

debian/control

@@ -2,7 +2,7 @@ Source: dns-flood-detector
 Section: net
 Priority: optional
 Maintainer: Jan Wagner <waja@cyconet.org>
-Build-Depends: debhelper (>= 9), hardening-wrapper, libpcap0.8-dev
+Build-Depends: debhelper (>= 9), libpcap0.8-dev
 Homepage: http://www.adotout.com/
 Vcs-Browser: https://gitlab.uncompleted.org/debian/dns-flood-detector
 Vcs-Git: https://gitlab.uncompleted.org/debian/dns-flood-detector.git