main/keepfileopen: drop

Its only consumer is now vendoring it

Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7495>

main/keepfileopen/APKBUILD

@@ -1,21 +0,0 @@
-# Maintainer: Minecrell <minecrell@minecrell.net>
-pkgname=keepfileopen
-pkgver=1
-pkgrel=1
-pkgdesc="Small utility to keep a file open. Yes, that's all it does :)"
-url="https://postmarketos.org"
-arch="all"
-license="MIT"
-source="keepfileopen.c"
-options="!check" # No tests. Not much can go wrong here...
-builddir="$srcdir"
-
-build() {
-	gcc -o keepfileopen keepfileopen.c
-}
-
-package() {
-	install -Dm755 keepfileopen "$pkgdir"/usr/bin/keepfileopen
-}
-
-sha512sums="ac9ed0f6ec07ef813ce3a539919acbe8a5a70d5765a5fff267674a3fb239cdb1dba58a14d72a64f990bdcb87c6476d30ef7add21f152df7cb48e36932ef14dbb  keepfileopen.c"

main/keepfileopen/keepfileopen.c

@@ -1,19 +0,0 @@
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-int main(int argc, char *argv[]) {
-	if (argc != 2) {
-		fprintf(stderr, "Usage: keepfileopen <file>\n");
-		return EXIT_FAILURE;
-	}
-
-	if (open(argv[1], O_RDONLY) < 0) {
-		perror("Failed to open file");
-		return EXIT_FAILURE;
-	}
-
-	pause();
-	return EXIT_SUCCESS;
-}