Destroy all user login tokens when deleting his account

src/helpers/account_helper.rs

@@ -343,7 +343,8 @@ pub fn delete(user_id: &UserID) -> ResultBoxError {
     // Delete all custom user emojies
     custom_emojies_helper::delete_all_user(user_id)?;
 
-    // TODO : continue work here
+    // Delete connections to all services
+    destroy_all_user_tokens(user_id)?;
 
     Ok(())
 }