meta-ethanolx: Remove devicetree patch as all changes were merged upstream

Devicetree patch is no longer needed as all the changes are now merged
upstream and will be by default in the next kernel release.
As to the current OpenBMC kernel release, all the changes were backported
and therefore the devicetree patch is no needed here too.

(From meta-amd rev: a6dd837fee1cd0ff765d9f84150baea32b4ab35d)

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: I81b5a8bd139dcf1da32da6b5005b3e9e015d2fd7
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-amd/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend b/meta-amd/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend
index 343a010..9f7f1b9 100644
--- a/meta-amd/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend
+++ b/meta-amd/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend
@@ -1,3 +1,2 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/linux-aspeed:"
-SRC_URI += "file://ethanolx.cfg \
-            file://0001-ARM-dts-aspeed-Add-GPIO-line-names-for-AMD-EthanolX.patch"
+SRC_URI += "file://ethanolx.cfg"