I expected that it would hide itself in the Nav Drawer when it is disabled in Site administration > Plugins > Repositories > Manage repositories - but as of 3.9 (Build: 20200615), it’s not doing that.
Add this to your custom css:
[data-key="contentbank"] {display: none;}
This is also related to https://moodle.org/mod/forum/discuss.php?d=408233#p1647179
Add this to your custom css:
[data-key="contentbank"] {display: none;}
This is also related to https://moodle.org/mod/forum/discuss.php?d=408233#p1647179