libfastjson: bump version to 0.99.4

Drop upstream patch and rename remaining one.

Also fixes:
  http://autobuild.buildroot.net/results/bfe/bfe8ebe3966324b16ca572bfba0a1a8ddc275db9

Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libfastjson/0001-fix-missing-config.h.patch

@@ -1,29 +0,0 @@
-From 3e017fe8da1e821d4fcd801c75467c8ec2a81eb4 Mon Sep 17 00:00:00 2001
-From: Rainer Gerhards <rgerhards@adiscon.com>
-Date: Tue, 19 Apr 2016 08:21:50 +0200
-Subject: [PATCH] fix missing config.h
-
-[yann.morin.1998@free.fr: backport from upstream]
-Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
-
----
- json_object_iterator.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/json_object_iterator.c b/json_object_iterator.c
-index 6ab3a85..fb51f6e 100644
---- a/json_object_iterator.c
-+++ b/json_object_iterator.c
-@@ -17,8 +17,8 @@
- *******************************************************************************
- */
- 
-+#include "config.h"
- #include <stddef.h>
--
- #include "json.h"
- #include "json_object_private.h"
- #include "json_object_iterator.h"
--- 
-2.7.4
-

package/libfastjson/libfastjson.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256  fcdca0c4702362de3db3f02c8da05f985b54a9eccd618af41730409b75d10a8f  libfastjson-v0.99.2.tar.gz
+sha256  03ef63dcc88417e71c19ce4436804159e3397e3a20d3529efef6a43c3bef5c8d  libfastjson-v0.99.4.tar.gz

package/libfastjson/libfastjson.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBFASTJSON_VERSION = v0.99.2
+LIBFASTJSON_VERSION = v0.99.4
 LIBFASTJSON_SITE = $(call github,rsyslog,libfastjson,$(LIBFASTJSON_VERSION))
 LIBFASTJSON_INSTALL_STAGING = YES
 # From git