libdrm: drop uclibc-specific patch

This patch isn't needed for musl or glibc, so drop it.

(From OE-Core rev: 46275ed3de30e6095b0d7ef71aad842e5ea9fe30)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/drm/libdrm/fix_O_CLOEXEC_undeclared.patch

@@ -1,24 +0,0 @@
-drmdevice.c: define _GNU_SOURCE
-
-Include config.h to fix this build error with uclibc:
-
-libdrm-2.4.66/tests/drmdevice.c: In function 'main':
-libdrm-2.4.66/tests/drmdevice.c:96:60: error:
-'O_CLOEXEC' undeclared (first use in this function)
-fd = open(devices[i]->nodes[j],O_RDONLY | O_CLOEXEC, 0);
-
-Upstream-Status: Pending
-
-Signed-off-by: Maxin B. John <maxin.john@intel.com>
----
-diff -Naur libdrm-2.4.66-orig/tests/drmdevice.c libdrm-2.4.66/tests/drmdevice.c
---- libdrm-2.4.66-orig/tests/drmdevice.c	2016-02-23 11:34:02.054904502 +0200
-+++ libdrm-2.4.66/tests/drmdevice.c	2016-02-23 11:35:34.371750383 +0200
-@@ -21,6 +21,7 @@
-  *
-  */
- 
-+#include <config.h>
- #include <errno.h>
- #include <stdio.h>
- #include <stdlib.h>

meta/recipes-graphics/drm/libdrm_2.4.92.bb

@@ -12,7 +12,6 @@ DEPENDS = "libpthread-stubs libpciaccess"
 
 SRC_URI = "http://dri.freedesktop.org/libdrm/${BP}.tar.bz2 \
            file://installtests.patch \
-           file://fix_O_CLOEXEC_undeclared.patch \
            file://0001-configure.ac-Allow-explicit-enabling-of-cunit-tests.patch \
           "