remove split code
Squashed 'system/database/' content from commit 130b3b5

git-subtree-dir: system/database
git-subtree-split: 130b3b57597848aa24c5c939d7a3ea767e50d445
Merge commit '6bcc465302cac9b638f1c3a3faca526bf26debce' as 'system/database'