Revert "rename the custom lockscreen state action"

This reverts commit 2f086b95a5d11eb933c4e8a39dc4b1b74dcedb45.
Revert "Add support for default data subscription setting."

This reverts commit 3f9fd5a5eb7c1c892fbcc72ad9670e780f994daa.
Revert "Set empty string to the property if value is null"

This reverts commit dedbfb75aee6236a5309040f0f028754600388b7.