inkcut: 2.1.5 -> 2.1.6

Unfortunately this may make inkcut refuse to start if you have old stuff
in you `~/.config/inkcut`, but that seems like an upstream problem,
https://github.com/inkcut/inkcut/issues/398

pkgs/by-name/in/inkcut/package.nix

@@ -9,37 +9,15 @@
 
 python3.pkgs.buildPythonApplication rec {
   pname = "inkcut";
-  version = "2.1.5";
+  version = "2.1.6";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     tag = "v${version}";
-    hash = "sha256-S5IrNWVoUp1w+P7DrKlOUOyY3Q16CHSct9ndZOB3UpU=";
+    hash = "sha256-qfgzJTFr4VTV/x4PVnUKJzIndfjXB8z2jTWLXvadBuY=";
   };
 
-  patches = [
-    # fix opening the extension on inkscape 1.2
-    # https://github.com/inkcut/inkcut/pull/340
-    (fetchpatch {
-      url = "https://github.com/inkcut/inkcut/commit/d5d5d0ab3c588c576b668f4c7b07a10609ba2fd0.patch";
-      hash = "sha256-szfiOujuV7OOwYK/OU51m9FK6dzkbWds+h0cr5dGIg4=";
-    })
-    # fix loading a document from stdin (as used from the extension)
-    # https://github.com/inkcut/inkcut/issues/341
-    (fetchpatch {
-      url = "https://github.com/inkcut/inkcut/commit/748ab4157f87afec37dadd715094e87d02c9c739.patch";
-      hash = "sha256-ZGiwZru2bUYu749YSz5vxmGwLTAoYIAsafcX6PmdbYo=";
-      revert = true;
-    })
-    # fix distutils deprecation error
-    # https://github.com/inkcut/inkcut/pull/343
-    (fetchpatch {
-      url = "https://github.com/inkcut/inkcut/commit/9fb95204981bcc51401a1bc10caa02d1fae0d6cb.patch";
-      hash = "sha256-nriys7IWPGykZjVz+DIDsE9Tm40DewkHQlIUaxFwtzM=";
-    })
-  ];
-
   postPatch = ''
     substituteInPlace inkcut/device/transports/printer/plugin.py \
       --replace ", 'lpr', " ", '${cups}/bin/lpr', "