linux-headers: Remove stray linux headers 3.18 nix file

In dced724c009a1646475373cc597ada385d46bde6 this derivation was
unexposed along (in all-packages.nix) with the removal of linux 3.18[1].
I think this file was left behind by mistake.

[1]: https://github.com/NixOS/nixpkgs/commit/dced724c009a1646475373cc597ada385d46bde6#diff-036410e9211b4336186fc613f7200b12L11174

1 files changed, 0 insertions, 74 deletions

diff --git a/pkgs/os-specific/linux/kernel-headers/3.18.nix b/pkgs/os-specific/linux/kernel-headers/3.18.nix
deleted file mode 100644
index 22650747ba21..000000000000
--- a/pkgs/os-specific/linux/kernel-headers/3.18.nix
+++ /dev/null
@@ -1,74 +0,0 @@
-{ stdenv, fetchurl, perl, cross ? null }:
-
-assert cross == null -> stdenv.isLinux;
-
-let
-
-  version = "3.18.14";
-
-  kernelHeadersBaseConfig =
-    if cross == null
-    then stdenv.platform.kernelHeadersBaseConfig
-    else cross.platform.kernelHeadersBaseConfig;
-
-in
-
-stdenv.mkDerivation {
-  name = "linux-headers-${version}";
-
-  src = fetchurl {
-    url = "mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.xz";
-    sha256 = "1xh0vvn1l2g1kkg54f0mg0inbpsiqs24ybgsakksmcpcadjgqk1i";
-  };
-
-  targetConfig = if cross != null then cross.config else null;
-
-  platform =
-    if cross != null then cross.platform.kernelArch else
-    if stdenv.system == "i686-linux" then "i386" else
-    if stdenv.system == "x86_64-linux" then "x86_64" else
-    if stdenv.system == "powerpc-linux" then "powerpc" else
-    if stdenv.isArm then "arm" else
-    if stdenv.platform ? kernelArch then stdenv.platform.kernelArch else
-    abort "don't know what the kernel include directory is called for this platform";
-
-  buildInputs = [perl];
-
-  # FIXME needs gcc 4.9 in bootstrap tools
-  hardeningDisable = [ "stackprotector" ];
-
-  extraIncludeDirs =
-    if cross != null then
-        (if cross.arch == "powerpc" then ["ppc"] else [])
-    else if stdenv.system == "powerpc-linux" then ["ppc"] else [];
-
-  buildPhase = ''
-    if test -n "$targetConfig"; then
-       export ARCH=$platform
-    fi
-    make ${kernelHeadersBaseConfig} SHELL=bash
-    make mrproper headers_check SHELL=bash
-  '';
-
-  installPhase = ''
-    make INSTALL_HDR_PATH=$out headers_install
-
-    # Some builds (e.g. KVM) want a kernel.release.
-    mkdir -p $out/include/config
-    echo "${version}-default" > $out/include/config/kernel.release
-  '';
-
-  # !!! hacky
-  fixupPhase = ''
-    ln -s asm $out/include/asm-$platform
-    if test "$platform" = "i386" -o "$platform" = "x86_64"; then
-      ln -s asm $out/include/asm-x86
-    fi
-  '';
-
-  meta = with stdenv.lib; {
-    description = "Header files and scripts for Linux kernel";
-    license = licenses.gpl2;
-    platforms = platforms.linux;
-  };
-}