Remove unnecessary preinstall for fcitx5-anthy

fcitx5/fcitx5-anthy.nix

@@ -12,11 +12,6 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake extra-cmake-modules pkg-config ];
   buildInputs = [ fcitx5 anthy gettext ];
 
-  preinstall = ''
-    substituteInPlace src/cmake_install.cmake \
-      --replace ${fcitx5} $out
-  '';
-
   meta = with lib; {
     description = "Anthy Wrapper for Fcitx5";
     homepage = "https://github.com/fcitx/fcitx5-anthy";