I installed the i10n extension on 4.7.24 and it totally FUBARed parts of the admin interface, I only get a blank screen. How can I manually remove the extension (Extension menu is FUBARed too).
Not quite an answer to the question, but if you didn't know, there is civicrm_extension table and you can at least set it to not active
otherwise if you have cli (and eg are on Drupal) you can use
- drush ceui
other such commands are listed here