fsfs: remove package which has never worked and project is dead

fsfs was added in f00bdb6f15
with a throw that states "it still does not build"

pkgs/tools/filesystems/fsfs/default.nix

@@ -1,32 +0,0 @@
-{lib, stdenv, fetchurl, openssl, fuse}:
-
-throw "It still does not build"
-
-stdenv.mkDerivation rec {
-  pname = "fsfs";
-  version = "0.1.1";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/fsfs/fsfs-${version}.tar.gz";
-    sha256 = "05wka9aq182li2r7gxcd8bb3rhpns7ads0k59v7w1jza60l57c74";
-  };
-
-  buildInputs = [ fuse openssl ];
-
-  patchPhase = ''
-    sed -i -e 's,CONFDIR=\(.*\),CONFDIR='$out/etc, \
-      -e 's,USERCONFPREFIX=\(.*\),USERCONFPREFIX='$out/var/lib, Makefile \
-      src/Makefile src/utils/Makefile
-  '';
-
-  preInstall = ''
-    mkdir -p $out/etc $out/var/lib
-    makeFlags="$makeFlags prefix=$out"
-  '';
-
-  meta = {
-    homepage = "http://fsfs.sourceforge.net/";
-    description = "Secure distributed file system in user space";
-    license = lib.licenses.gpl2Plus;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -6846,8 +6846,6 @@ with pkgs;
 
   fsarchiver = callPackage ../tools/archivers/fsarchiver { };
 
-  fsfs = callPackage ../tools/filesystems/fsfs { };
-
   fstl = qt5.callPackage ../applications/graphics/fstl { };
 
   fswebcam = callPackage ../os-specific/linux/fswebcam { };