pict-rs_0_3: remove leftover files

https://github.com/NixOS/nixpkgs/pull/336077 only added a throw to
aliases.nix, but didn't remove the files

pkgs/by-name/pi/pict-rs/0.3.nix

@@ -1,61 +0,0 @@
-{
-  stdenv,
-  lib,
-  fetchFromGitea,
-  rustPlatform,
-  makeWrapper,
-  protobuf,
-  Security,
-  imagemagick,
-  ffmpeg,
-  exiftool,
-  nixosTests,
-}:
-
-rustPlatform.buildRustPackage rec {
-  pname = "pict-rs";
-  version = "0.3.3";
-
-  src = fetchFromGitea {
-    domain = "git.asonix.dog";
-    owner = "asonix";
-    repo = pname;
-    rev = "v${version}";
-    sha256 = "mEZBFDR+/aMRFw54Yq+f1gyEz8H+5IggNCpzv3UdDFg=";
-  };
-
-  cargoLock = {
-    lockFile = ./Cargo-0.3.lock;
-    outputHashes = {
-      "aws-creds-0.29.1" = "bwDFmDPThMLrpaB7cAj/2/vJKhbX6/DqgcIRBVKSZhg=";
-    };
-  };
-
-  # needed for internal protobuf c wrapper library
-  PROTOC = "${protobuf}/bin/protoc";
-  PROTOC_INCLUDE = "${protobuf}/include";
-
-  nativeBuildInputs = [ makeWrapper ];
-  buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [ Security ];
-
-  postInstall = ''
-    wrapProgram "$out/bin/pict-rs" \
-        --prefix PATH : "${
-          lib.makeBinPath [
-            imagemagick
-            ffmpeg
-            exiftool
-          ]
-        }"
-  '';
-
-  passthru.tests = { inherit (nixosTests) pict-rs; };
-
-  meta = with lib; {
-    description = "Simple image hosting service";
-    mainProgram = "pict-rs";
-    homepage = "https://git.asonix.dog/asonix/pict-rs";
-    license = with licenses; [ agpl3Plus ];
-    maintainers = with maintainers; [ happysalada ];
-  };
-}