vxl: remove obsolete patch

pkgs/development/libraries/vxl/default.nix

@@ -22,8 +22,6 @@ stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
-  patches = [ ./gcc5.patch ];
-
   meta = {
     description = "C++ Libraries for Computer Vision Research and Implementation";
     homepage = http://vxl.sourceforge.net/;

pkgs/development/libraries/vxl/gcc5.patch

@@ -1,15 +0,0 @@
-https://lists.fedoraproject.org/pipermail/scm-commits/Week-of-Mon-20150216/1511118.html
-
---- vxl-git4e07960/vcl/vcl_compiler.h~	2012-11-02 12:08:21.000000000 +0100
-+++ vxl-git4e07960/vcl/vcl_compiler.h	2015-02-15 13:50:46.376329878 +0100
-@@ -119,6 +119,10 @@
- #  else
- #   define VCL_GCC_40
- #  endif
-+# elif (__GNUC__== 5)
-+// pretend GCC 5 to be GCC 4
-+#  define VCL_GCC_4
-+#  define VCL_GCC_41
- # else
- #  error "Dunno about this gcc"
- # endif