Don't recommend editing DB to reset passwords.

docs/usage/administration/admin_faq.md

@@ -35,21 +35,7 @@ SELECT NAME from users;
 Manually resetting passwords
 ---
 Users can reset their password through their client. Alternatively, a server admin
-can reset a user's password using the [admin API](../../admin_api/user_admin_api.md#reset-password)
-or by directly editing the database as shown below.
-
-First calculate the hash of the new password:
-
-    $ ~/synapse/env/bin/hash_password
-    Password:
-    Confirm password:
-    $2a$12$xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-
-Then update the ``users`` table in the database:
-
-    UPDATE users SET password_hash='$2a$12$xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
-        WHERE name='@test:test.com';
-
+can reset a user's password using the [admin API](../../admin_api/user_admin_api.md#reset-password).
 
 
 I have a problem with my server. Can I just delete my database and start again?