I had the same issue when I updated to 4.3 - the giant text notification on the lockscreen. I downloaded Lockscreen Policy, and it did the trick.
NOW, I got the 4.4.2 update, and that stupid big notification is back when I get a text and Lockscreen Policy says it has reached EOL on 4.4.2 because you can set this on the phone itself. Well, not on mine, and I can't even uninstall Lockscreen Policy.
I want the notification in the status bar, but not on my lockscreen. Additionally, I have an annoying camera icon/widget on the bottom of the lockscreen, and I don't want that there.
When I go to setting>mydevice>lockscreen>lockscreen widgets, the first option is "favorite apps or camera" (under "general settings") This has an on/off toggle switch, but the entire option is greyed out, so unusable. This looks like the place where I'd set the lockscreen notifications, but I can't.
Help! Any nice little apps I can get that work like the awesome Lockscreen Policy? I don't want those giant text notifications or the camera icon on my lockscreen.