Can't delete nodes with no children, otherwise the parent-child relations may be corrupted. Jira: STUDIO-3737, MAK-1557 Change-Id: I1de39e182bac4a55a8739c00e59fdf7b9b5e4dfb (cherry picked from commit 8ad53b9fc16362e5bac1f649b53f4f0eba1edc1d)