boomerang: remove deprecated fixups/workarounds

If they're still needed they should be reworked so they apply :)

pkgs/development/tools/boomerang/default.nix

@@ -14,24 +14,6 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake bison flex ];
   buildInputs = [ qtbase capstone ];
 
-  postPatch =
-  # Look in installation directory for required files, not relative to working directory
-  ''
-    substituteInPlace src/boomerang/core/Settings.cpp \
-      --replace "setDataDirectory(\"../share/boomerang\");" \
-                "setDataDirectory(\"$out/share/boomerang\");" \
-      --replace "setPluginDirectory(\"../lib/boomerang/plugins\");" \
-                "setPluginDirectory(\"$out/lib/boomerang/plugins\");"
-  ''
-  # Fixup version:
-  # * don't try to inspect with git
-  #   (even if we kept .git and such it would be "dirty" because of patching)
-  # * use date so version is monotonically increasing moving forward
-  + ''
-    sed -i cmake-scripts/boomerang-version.cmake \
-      -e 's/set(\(PROJECT\|BOOMERANG\)_VERSION ".*")/set(\1_VERSION "${version}")/'
-  '';
-
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {