wasm-tools: 1.0.39 -> 1.0.40

Also, remove the Cargo.lock file that was committed back to the main
repository since bd03062ce0ca64fa5be96a27e5ac0d861916d490.

pkgs/tools/misc/wasm-tools/default.nix

@@ -5,23 +5,18 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "wasm-tools";
-  version = "1.0.39";
+  version = "1.0.40";
 
   src = fetchFromGitHub {
     owner = "bytecodealliance";
     repo = pname;
     rev = "${pname}-${version}";
-    hash = "sha256-NohA/2yzsEtMECvnntPyWvhEdVL63elmw0B+4Med6OE=";
+    hash = "sha256-ZDQPIEDroi+YgEtQ9IsVvFSErfeyDf4KFuybEbGu91E=";
     fetchSubmodules = true;
   };
 
-  cargoLock.lockFile = ./Cargo.lock;
-  postPatch = ''
-    ln -sf ${./Cargo.lock} Cargo.lock
-  '';
-
+  cargoHash = "sha256-Nynn7pxQyqfMAMGmp3eZFg7y5nj7UPyK6FLbVbN07AA=";
   cargoBuildFlags = [ "--package" "wasm-tools" ];
-
   cargoTestFlags = [ "--all" ];
 
   meta = with lib; {