How to disable or hide scrollbar/minimap?

Ctrl + Shift + P -> Open User Settings

"editor.minimap.enabled": false

Try this,

view->toggle minimap

or after version 1.43

view->show minimap

Remove Minimap

Add the following to your settings.json file

"editor.minimap.enabled": false

Note that, as pointed out in another answer, this process has now been simplified to:

View->Show Minimap

Remove the Overview Ruler

Add the following to your settings.json file

"editor.hideCursorInOverviewRuler": true

This will keep the scrollbar, but will result in it only appearing when the cursor is within the editor, as seen in the image below:

Completely remove scrollbars (requires restart)

If you would like to completely remove the scrollbars, add the following to your settings.json file (note the editor will say "Unknown configuration setting" - ignore this. It will still work):

"editor.scrollbar.horizontal": "hidden",
"editor.scrollbar.vertical": "hidden"

This will result in the scrollbars not being visible even when the cursor is in the editor, as seen in the image below: