remove the purple patch on arm64 u-boot

it's green there. different colour scheme apparently.

still works on x86. alper said his kevin chromebook was green!

Signed-off-by: Leah Rowe <leah@libreboot.org>

.gitignore

@@ -35,4 +35,4 @@
 /lock
 /hash/
 /dump/
-/qrun.sh
+/qrun*.sh

config/u-boot/default/patches/0008-i-made-it-purple.patch

@@ -1,33 +0,0 @@
-From 9c1ceb5a5b302275da146149001f4210a1d7fc86 Mon Sep 17 00:00:00 2001
-From: Leah Rowe <info@minifree.org>
-Date: Wed, 4 Dec 2024 20:13:42 +0000
-Subject: [PATCH 1/1] i made it purple
-
-Signed-off-by: Leah Rowe <info@minifree.org>
----
- boot/expo.c | 7 ++-----
- 1 file changed, 2 insertions(+), 5 deletions(-)
-
-diff --git a/boot/expo.c b/boot/expo.c
-index ed01483f1d..04726d1c9a 100644
---- a/boot/expo.c
-+++ b/boot/expo.c
-@@ -189,13 +189,10 @@ int expo_render(struct expo *exp)
- 	struct udevice *dev = exp->display;
- 	struct video_priv *vid_priv = dev_get_uclass_priv(dev);
- 	struct scene *scn = NULL;
--	enum colour_idx back;
--	u32 colour;
- 	int ret;
- 
--	back = CONFIG_IS_ENABLED(SYS_WHITE_ON_BLACK) ? VID_BLACK : VID_WHITE;
--	colour = video_index_to_colour(vid_priv, back);
--	ret = video_fill(dev, colour);
-+	/* sexy libreboot purple background */
-+	ret = video_fill(dev, 0x280b22); /* #280b22 in HTML RGB notation */
- 	if (ret)
- 		return log_msg_ret("fill", ret);
- 
--- 
-2.39.5
-