Yep, you read that correctly.
Visual automation steps can be deleted!
To remove a step from one of your Visual Automations, hover over the node until the ‘edit step’ option appears. Click that, and then the delete button, and then confirm the deletion via the modal that pops up.
Here’s how it looks:
NOTE: Removing a step from a Visual Automation will not reverse any actions that have occurred to Subscribers, such as Tags or Custom Fields that have been added. Likewise, they will not be removed from Sequences they are already in.