Remove the Lock Icon From Your Status Bar With 'No Lock Icon"
If it has ever been an ambition of yours to have an extremely neat and tidy lock screen status bar, then a new free jailbreak tweak dubbed No Lock Icon
by iOS developer rhodysurf can hide that lock icon from your status bar. The tweak is completely cosmetic, offering no breakthrough functionality.
Hiding the lock icon can also help you make more room for status bar icons such as those that appear when you have IntelliScreenX installed and you get notifications. With the lock icon gone, things in the status bar will look spacier and less compressed into one little area. If you have your status bar content customized with a jailbreak tweak like CleanStatus, this tweak will not conflict with it.
Since the lock icon only appears on the status bar when the iOS device is locked, the tweak is only for modifying the lock screen. No Lock Icon will not change anything on the status bar anywhere else in iOS because the lock icon doesnt appear anywhere else in iOS.
Whether or not you will find the tweak useful, the look of the lock screen with the little lock icon missing from the status bar doesn't look bad. Its basically a tweak for simplifying the lock screen and making fewer elements viewable. No Lock Icon has no options to configure and you can find it in in Cydia today. If you don't like it, you can always uninstall it as it's free and there is nothing to lose by trying it.
No Lock Icon