kanata: useFetchCargoVendor

Cargo 1.84.0 seems to have changed the output format of cargo vendor
again, once again invalidating fetchCargoTarball FOD hashes.  It's
time to fix this once and for all, switching across the board to
fetchCargoVendor, which is not dependent on cargo vendor's output
format.

Being optimistic that fetchCargoVendor will have resolved the
case-insensitivity issues.

pkgs/by-name/ka/kanata/package.nix

@@ -22,28 +22,8 @@ rustPlatform.buildRustPackage rec {
     sha256 = "sha256-cG9so0x0y8CbTxLOxSQwn5vG72KxHJzzTIH4lQA4MvE=";
   };
 
-  cargoHash = "sha256-QQrFUJ24Qnrx8+7+h9riycXZSQUdH1sXMhpDzU9AXiI=";
-
-  # the dependency native-windows-gui contains both README.md and readme.md,
-  # which causes a hash mismatch on systems with a case-insensitive filesystem
-  # this removes the readme files and updates cargo's checksum file accordingly
-  depsExtraArgs = {
-    nativeBuildInputs = [
-      jq
-      moreutils
-    ];
-
-    postBuild = ''
-      pushd $name/native-windows-gui
-
-      rm --force --verbose README.md readme.md
-      jq 'del(.files."README.md") | del(.files."readme.md")' \
-        .cargo-checksum.json -c \
-        | sponge .cargo-checksum.json
-
-      popd
-    '';
-  };
+  useFetchCargoVendor = true;
+  cargoHash = "sha256-VKvle1hQae+0Vbvd7Epq3cDqG8OV5J2mowF5lue59oc=";
 
   buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [ darwin.apple_sdk.frameworks.IOKit ];