elogind: remove upstreamed patch

srcpkgs/elogind/patches/fix-musl.patch

@@ -1,26 +0,0 @@
---- src/basic/stdio-util.h.orig	2017-05-16 08:19:59.761131676 +0200
-+++ src/basic/stdio-util.h	2017-05-16 08:19:49.802148925 +0200
-@@ -21,7 +21,9 @@
-   along with systemd; If not, see <http://www.gnu.org/licenses/>.
- ***/
- 
-+#ifdef __GLIBC__
- #include <printf.h>
-+#endif
- #include <stdarg.h>
- #include <stdio.h>
- #include <sys/types.h>
---- src/basic/log.c.orig	2017-05-16 08:23:05.633809741 +0200
-+++ src/basic/log.c	2017-05-16 10:17:55.577021451 +0200
-@@ -21,7 +21,11 @@
- 
- #include <errno.h>
- #include <fcntl.h>
-+#ifdef __GLIBC__
- #include <printf.h>
-+#else
-+#include "parse-printf-format.h"
-+#endif
- #include <stdarg.h>
- #include <stddef.h>
- #include <stdio.h>