buildRustPackage: remove platform.all from packages

pkgs/tools/graphics/oxipng/default.nix

@@ -23,6 +23,5 @@ rustPlatform.buildRustPackage rec {
     description = "A multithreaded lossless PNG compression optimizer";
     license = licenses.mit;
     maintainers = with maintainers; [ dywedir ];
-    platforms = platforms.all;
   };
 }

pkgs/tools/graphics/svgbob/default.nix

@@ -23,6 +23,5 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/ivanceras/svgbob";
     license = licenses.asl20;
     maintainers = [ maintainers.marsam ];
-    platforms = platforms.all;
   };
 }

pkgs/tools/graphics/svgcleaner/default.nix

@@ -17,7 +17,6 @@ rustPlatform.buildRustPackage rec {
     description = "A tool for tidying and optimizing SVGs";
     homepage = "https://github.com/RazrFalcon/svgcleaner";
     license = licenses.gpl2;
-    platforms = platforms.all;
     maintainers = [ maintainers.mehandes ];
   };
 }

pkgs/tools/graphics/viu/default.nix

@@ -20,6 +20,5 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/atanunq/viu";
     license = licenses.mit;
     maintainers = with maintainers; [ petabyteboy ];
-    platforms = platforms.all;
   };
 }