virtualbox: Update tarball sha256sum of v4.2.8.

Outrageous! They fixed the tarball by including the missing file.
Well, at least we now don't have that much cruft laying around and can remove
that rather long patch.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

pkgs/applications/virtualization/virtualbox/default.nix

@@ -44,7 +44,7 @@ in stdenv.mkDerivation {
 
   src = fetchurl {
     url = "http://download.virtualbox.org/virtualbox/${version}/VirtualBox-${version}.tar.bz2";
-    sha256 = "bc9185e0c300d61e2a6c8ac48b4bea6a0a456c9ba11d1fbadf2d1e6ca063f2b4";
+    sha256 = "f336af12244db74e6564dc22e438bbcba70f994aaf0d117fdf70caca9fab1b78";
   };
 
   buildInputs =
@@ -55,7 +55,6 @@ in stdenv.mkDerivation {
     ++ optional pythonBindings python;
 
   patches = [
-    ./missing_files_4.2.8.patch
     ./strict_types.patch
     ./build_fix_3.9.0.patch
   ];