merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 0 insertions, 28 deletions

diff --git a/third_party/git/interdiff.c b/third_party/git/interdiff.c
deleted file mode 100644
index c81d680a6cee..000000000000
--- a/third_party/git/interdiff.c
+++ /dev/null
@@ -1,28 +0,0 @@
-#include "cache.h"
-#include "commit.h"
-#include "revision.h"
-#include "interdiff.h"
-
-static struct strbuf *idiff_prefix_cb(struct diff_options *opt, void *data)
-{
-	return data;
-}
-
-void show_interdiff(struct rev_info *rev, int indent)
-{
-	struct diff_options opts;
-	struct strbuf prefix = STRBUF_INIT;
-
-	memcpy(&opts, &rev->diffopt, sizeof(opts));
-	opts.output_format = DIFF_FORMAT_PATCH;
-	opts.output_prefix = idiff_prefix_cb;
-	strbuf_addchars(&prefix, ' ', indent);
-	opts.output_prefix_data = &prefix;
-	diff_setup_done(&opts);
-
-	diff_tree_oid(rev->idiff_oid1, rev->idiff_oid2, "", &opts);
-	diffcore_std(&opts);
-	diff_flush(&opts);
-
-	strbuf_release(&prefix);
-}