Silent Printing from Firefox browser (no Print view screen)

Here’s what you need to do to enable Firefox immediately print without showing the print preferences dialog box.

1. Type about:config at Firefox’s location bar and hit Enter.
2. Right click at anywhere on the page and select New > Boolean
3. Enter the preference name as print.always_print_silent and click OK.

Enable (Create) OR Disable Users in SVN

How to Enable User in SVN

htpasswd -m /etc/apache2/dav_svn.passwd <<User Name>>

How to Disable User in SVN

htpasswd -D /etc/apache2/dav_svn.passwd <<User Name>

To know what could be the SVN username of the developer, open the passwd file and check what are the usernames are found on that file. If you are unsure about which username, you can remove all users, as you said, no one is using it.