libdc1394: remove patch

applied in newer version

pkgs/development/libraries/libdc1394/darwin-fixes.patch

@@ -1,24 +0,0 @@
-diff -Naur libdc1394-2.2.5-old/dc1394/bayer.c libdc1394-2.2.5-new/dc1394/bayer.c
---- libdc1394-2.2.5-old/dc1394/bayer.c	2016-10-11 02:19:10.000000000 -0400
-+++ libdc1394-2.2.5-new/dc1394/bayer.c	2017-03-28 17:59:02.000000000 -0400
-@@ -775,7 +775,7 @@
- {
- 	uint8_t *outR, *outG, *outB;
- 	register int i, j;
--	uint tmp;
-+	uint32_t tmp;
- 	int st=sx*sy;
- 	int p;
- 	int sx2=sx<<1;
-diff -Naur libdc1394-2.2.5-old/dc1394/macosx/capture.c libdc1394-2.2.5-new/dc1394/macosx/capture.c
---- libdc1394-2.2.5-old/dc1394/macosx/capture.c	2016-12-20 08:10:34.000000000 -0500
-+++ libdc1394-2.2.5-new/dc1394/macosx/capture.c	2017-03-28 17:58:38.000000000 -0400
-@@ -614,7 +614,7 @@
-     dc1394video_frame_t * frame_tmp = capture->frames + next;
-     char ch;
- 
--	if(craw->frames==NULL || craw->capture_is_set==0) {
-+	if(craw->capture.frames==NULL || craw->capture_is_set==0) {
- 		*frame=NULL;
- 		return DC1394_CAPTURE_IS_NOT_SET;
- 	}

pkgs/development/libraries/libdc1394/default.nix

@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, libraw1394,
-libusb1, CoreServices }:
+{ stdenv, fetchurl, libraw1394
+, libusb1, CoreServices }:
 
 stdenv.mkDerivation rec {
   name = "libdc1394-${version}";
@@ -14,8 +14,6 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional stdenv.isLinux libraw1394
     ++ stdenv.lib.optional stdenv.isDarwin CoreServices;
 
-  patches = stdenv.lib.optional stdenv.isDarwin ./darwin-fixes.patch;
-
   meta = with stdenv.lib; {
     homepage = https://sourceforge.net/projects/libdc1394/;
     description = "Capture and control API for IIDC compliant cameras";