overlay coreos/user-patches: Drop patch for sys-libs/efivar

The updated package already has the patch.

sdk_container/src/third_party/coreos-overlay/coreos/user-patches/sys-libs/efivar/0001-src-Makefile-build-util.c-separately-for-makeguids.patch

@@ -1,37 +0,0 @@
-From ca48d3964d26f5e3b38d73655f19b1836b16bd2d Mon Sep 17 00:00:00 2001
-From: Alexander Kanavin <alex@linutronix.de>
-Date: Tue, 18 Jan 2022 11:53:41 +0100
-Subject: [PATCH] src/Makefile: build util.c separately for makeguids
-
-util.c needs to be built twice when cross-compiling:
-for the build machine to be able to link with
-makeguids which then runs during the same build,
-and then for the actual target.
-
-Signed-off-by: Alexander Kanavin <alex@linutronix.de>
----
- src/Makefile | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
-diff --git a/src/Makefile b/src/Makefile
-index 0e423c4..a86abdc 100644
---- a/src/Makefile
-+++ b/src/Makefile
-@@ -27,10 +27,13 @@ EFIVAR_OBJECTS = $(patsubst %.S,%.o,$(pa
- EFISECDB_SOURCES = efisecdb.c guid-symbols.c secdb-dump.c util.c
- EFISECDB_OBJECTS = $(patsubst %.S,%.o,$(patsubst %.c,%.o,$(EFISECDB_SOURCES)))
- GENERATED_SOURCES = include/efivar/efivar-guids.h guid-symbols.c
--MAKEGUIDS_SOURCES = makeguids.c util.c
-+MAKEGUIDS_SOURCES = makeguids.c util-makeguids.c
- MAKEGUIDS_OBJECTS = $(patsubst %.S,%.o,$(patsubst %.c,%.o,$(MAKEGUIDS_SOURCES)))
- MAKEGUIDS_OUTPUT = $(GENERATED_SOURCES)
- 
-+util-makeguids.c : util.c
-+	cp util.c util-makeguids.c
-+
- ALL_SOURCES=$(LIBEFISEC_SOURCES) $(LIBEFIBOOT_SOURCES) $(LIBEFIVAR_SOURCES) \
- 	    $(MAKEGUIDS_SOURCES) $(GENERATED_SOURCES) $(EFIVAR_SOURCES) \
- 	    $(sort $(wildcard include/efivar/*.h))
--- 
-2.34.1
-

sdk_container/src/third_party/coreos-overlay/coreos/user-patches/sys-libs/efivar/README.md

@@ -1,4 +0,0 @@
-The `0001-src-Makefile-build-util.c-separately-for-makeguids.patch`
-patch fixes a cross-compilation issue. We will ask Gentoo to include
-this patch too in their ebuild. Currently there is no release of
-efivar that has this patch.