debian: don't explicitely call update-rc.d.
debhelper will do that for us.
Fixes duplicate-updaterc.d-calls-in-postinst lintian warning.
diff --git a/debian/nginx.postinst b/debian/nginx.postinst
index 8edc9e6..4932ec3 100644
--- a/debian/nginx.postinst
+++ b/debian/nginx.postinst
@@ -28,7 +28,6 @@
/etc/init.d/nginx upgrade || echo \
"Binary upgrade failed, please check nginx's error.log"
else
- update-rc.d nginx defaults >/dev/null
if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
invoke-rc.d nginx start || true
else