Merge staging-next into staging

pkgs/development/compilers/go/1.16.nix

···
 
 stdenv.mkDerivation rec {
   pname = "go";
-  version = "1.16.12";
+  version = "1.16.13";
 
   src = fetchurl {
     url = "https://dl.google.com/go/go${version}.src.tar.gz";
-    sha256 = "sha256-Kv2Dnct20rsILFAsAaClzb/An9YwdXg1NjxP3o4vv+g=";
+    sha256 = "sha256-sJJmVOrrAe9DgWY49C17FoHy0/QblVnwdzVSK3r61Bo=";
   };
 
   # perl is used for testing go vet

pkgs/development/go-modules/generic/default.nix

···
-{ go, cacert, git, lib, stdenv, vend }:
+{ go, cacert, git, lib, stdenv }:
 
 { name ? "${args'.pname}-${args'.version}"
 , src
···
         exit 10
       fi
 
-    ${if runVend then ''
-      echo "running 'vend' to rewrite vendor folder"
-      ${vend}/bin/vend
-    '' else if proxyVendor then ''
+    ${if proxyVendor then ''
       mkdir -p "''${GOPATH}/pkg/mod/cache/download"
       go mod download
     '' else ''

pkgs/development/libraries/pangoxsl/default.nix

···
-{lib, stdenv, fetchurl, pkg-config, glib, pango}:
-
-stdenv.mkDerivation rec {
-  pname = "pangoxsl";
-  version = "1.6.0.3";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/pangopdf/pangoxsl-${version}.tar.gz";
-    sha256 = "1wcd553nf4nwkrfrh765cyzwj9bsg7zpkndg2hjs8mhwgx04lm8n";
-  };
-
-  nativeBuildInputs = [ pkg-config ];
-  buildInputs = [
-    glib
-    pango
-  ];
-
-  meta = with lib; {
-    description = "Implements several of the inline properties defined by XSL that are not currently implemented by Pango";
-    homepage = "https://sourceforge.net/projects/pangopdf";
-    platforms = platforms.unix;
-    license = licenses.lgpl2;
-  };
-}

pkgs/tools/typesetting/xmlroff/default.nix

···
 , libxml2
 , libxslt
 , pango
-, pangoxsl
 , perl
 , pkg-config
 , popt
···
     libxml2
     libxslt
     pango
-    pangoxsl
     gtk2
     popt
   ];

pkgs/top-level/all-packages.nix

···
 
   paperkey = callPackage ../tools/security/paperkey { };
 
-  pangoxsl = callPackage ../development/libraries/pangoxsl { };
-
   pcaudiolib = callPackage ../development/libraries/pcaudiolib { };
 
   pcg_c = callPackage ../development/libraries/pcg-c { };