>>1488827>>1488828You can use springtomize to edit the status bar and the top bar of the lockscreen, and the slider. But doesn't remove the entire locksreen completely. Use invisible slider to remove the slider completely. Now, with Clock Builder, it automatically hides the pesky grey boarder line that sits on top of the slider portion of the screen, but if you don't want a clock or something else, use No lock bars, all from Cydia and uses WinterBoard.
Fullscreen LockScreen takes care of ALL this, but also, somehow, makes your status bar transparent, and makes it a bitch to read on lighter walls