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.

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: I548cf9e24ce5e1cde15589326a03bafd59c4e31d
diff --git a/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend b/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend
index 343a010..9f7f1b9 100644
--- a/meta-ethanolx/recipes-kernel/linux/linux-aspeed_%.bbappend
+++ b/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"