remove python3 patches

python 3 is default now, in all the distros

specifically calling "python3" often doesn't work anymore

python2 is obsolete

let python2 die

resources/grub/patches/0003-specifically-use-python3-in-gentpl.py.patch

@@ -1,22 +0,0 @@
-From d30654becf183e14e5c5c8d8216ee52a6437f233 Mon Sep 17 00:00:00 2001
-From: Leah Rowe <leah@libreboot.org>
-Date: Sun, 13 Mar 2022 18:08:57 +0000
-Subject: [PATCH 3/3] specifically use python3 in gentpl.py
-
----
- gentpl.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/gentpl.py b/gentpl.py
-index 9f51e4fb6..22cf4439c 100644
---- a/gentpl.py
-+++ b/gentpl.py
-@@ -1,4 +1,4 @@
--#! /usr/bin/python
-+#! /usr/bin/python3
- #  GRUB  --  GRand Unified Bootloader
- #  Copyright (C) 2010,2011,2012,2013  Free Software Foundation, Inc.
- #
--- 
-2.25.1
-