chore(3p/nix): unvendor tvix 0.1 r/4098

Nothing is using this now, and we'll likely never pick this up again,
but we learned a lot in the process.

Every now and then this breaks in some bizarre way on channel bumps
and it's just a waste of time to maintain that.

Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 52 deletions

diff --git a/third_party/nix/src/libutil/xml-writer.hh b/third_party/nix/src/libutil/xml-writer.hh
deleted file mode 100644
index d6f7cddb35ac..000000000000
--- a/third_party/nix/src/libutil/xml-writer.hh
+++ /dev/null
@@ -1,52 +0,0 @@
-#pragma once
-
-#include <iostream>
-#include <list>
-#include <map>
-#include <string>
-
-namespace nix {
-
-typedef std::map<std::string, std::string> XMLAttrs;
-
-class XMLWriter {
- private:
-  std::ostream& output;
-
-  bool indent;
-  bool closed;
-
-  std::list<std::string> pendingElems;
-
- public:
-  XMLWriter(bool indent, std::ostream& output);
-  ~XMLWriter();
-
-  void close();
-
-  void openElement(const std::string& name, const XMLAttrs& attrs = XMLAttrs());
-  void closeElement();
-
-  void writeEmptyElement(const std::string& name,
-                         const XMLAttrs& attrs = XMLAttrs());
-
- private:
-  void writeAttrs(const XMLAttrs& attrs);
-
-  void indent_(size_t depth);
-};
-
-class XMLOpenElement {
- private:
-  XMLWriter& writer;
-
- public:
-  XMLOpenElement(XMLWriter& writer, const std::string& name,
-                 const XMLAttrs& attrs = XMLAttrs())
-      : writer(writer) {
-    writer.openElement(name, attrs);
-  }
-  ~XMLOpenElement() { writer.closeElement(); }
-};
-
-}  // namespace nix