bitkeeper: remove after being marked broken for over two years

It was marked in commit e04772230b by Franz Pletz on 2017-08-27 (commited on 2017-08-28)

pkgs/applications/version-management/bitkeeper/default.nix

@@ -1,56 +0,0 @@
-{ lib, stdenv, fetchurl, perl, gperf, bison, groff
-, pkg-config, libXft, pcre
-, libtomcrypt, libtommath, lz4 }:
-
-stdenv.mkDerivation rec {
-  pname = "bitkeeper";
-  version = "7.3.1ce";
-
-  src = fetchurl {
-    url = "https://www.bitkeeper.org/downloads/${version}/bk-${version}.src.tar.gz";
-    sha256 = "0l6jwvcg4s1q00vb01hdv58jgv03l8x5mhjl73cwgfiff80zx147";
-  };
-
-  hardeningDisable = [ "fortify" ];
-
-  enableParallelBuilding = true;
-
-  nativeBuildInputs = [ pkg-config ];
-  buildInputs = [
-    perl gperf bison groff libXft
-    pcre libtomcrypt libtommath lz4
-  ];
-
-  postPatch = ''
-        substituteInPlace port/unix_platform.sh \
-                --replace /bin/rm rm
-        substituteInPlace ./undo.c \
-                --replace /bin/cat cat
-  '';
-
-  sourceRoot = "bk-${version}/src";
-  buildPhase = ''
-    make -j6 V=1 p
-    make image
-  '';
-
-  installPhase = ''
-    ./utils/bk-* $out/bitkeeper
-    mkdir -p $out/bin
-    $out/bitkeeper/bk links $out/bin
-    chmod g-w $out
-  '';
-
-  meta = {
-    description     = "A distributed version control system";
-    longDescription = ''
-      BitKeeper is a fast, enterprise-ready, distributed SCM that
-      scales up to very large projects and down to tiny ones.
-    '';
-    homepage    = "https://www.bitkeeper.org/";
-    license     = lib.licenses.asl20;
-    platforms   = lib.platforms.linux;
-    maintainers = with lib.maintainers; [ wscott thoughtpolice ];
-    broken      = true; # seems to fail on recent glibc versions
-  };
-}

pkgs/top-level/all-packages.nix

@@ -24983,10 +24983,6 @@ with pkgs;
     glew = glew110;
   };
 
-  bitkeeper = callPackage ../applications/version-management/bitkeeper {
-    gperf = gperf_3_0;
-  };
-
   bitlbee = callPackage ../applications/networking/instant-messengers/bitlbee { };
   bitlbee-plugins = callPackage ../applications/networking/instant-messengers/bitlbee/plugins.nix { };