chore: remove files that are being moved [skip ci]

.github/FUNDING.yml

@@ -1,2 +0,0 @@
-ko_fi: insertish
-custom: https://insrt.uk/donate

.github/SECURITY.md

@@ -1,24 +0,0 @@
-# Security
-
-## Reporting a Vulnerability
-
-If you would like to report a security vulnerability,
-please email **[security@revolt.chat](mailto:security@revolt.chat)**,
-this will open a new ticket in ticket system, you should receive a response
-within the next couple of days, potentially within a few minutes if someone
-is currently active.
-
-To help us best triage the issue, please provide:
-
-- The type of issue at hand
-- The name of the relevant project affected
-- Reproduction steps
-- Reference to any relevant source file(s) that you may suspect are causing the issue
-- Any extra information about your configuration.
-- Description of potential ways this can be exploited, if you can list any
-
-For revoltchat/revite in particular:
-
-- Please include the commit hash of the client, it is visible in settings under the log out button.
-
-Thank you for helping Revolt.