New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/27145#discussion_r542957967

Comment:
I don't think we need this patch, just follow what LFS do:
```diff
diff --git a/srcpkgs/kernel-libc-headers/template b/srcpkgs/kernel-libc-headers/template
index 715e0be817..09e3456812 100644
--- a/srcpkgs/kernel-libc-headers/template
+++ b/srcpkgs/kernel-libc-headers/template
@@ -26,12 +26,13 @@ esac
 
 do_build() {
 	make mrproper
-	make ARCH=${_arch} headers_check
+	make ARCH=${_arch} headers
 }
 do_install() {
-	make ARCH=${_arch} INSTALL_HDR_PATH=${DESTDIR}/usr headers_install
-	# Remove unused files.
-	rm -f $(find ${DESTDIR}/usr/include -name .install -or -name ..install.cmd)
+	vmkdir usr
+	cp -r usr/include $DESTDIR/usr
+	find $DESTDIR/usr/include -name '.*' -delete
+	rm $DESTDIR/usr/include/Makefile
 	# Remove drm headers, use libdrm.
 	rm -rf ${DESTDIR}/usr/include/drm
 }
```

Notes that `headers_check` is nop, now.

http://www.linuxfromscratch.org/lfs/view/stable/chapter05/linux-headers.html