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, 8 deletions

diff --git a/third_party/git/connected.h b/third_party/git/connected.h
index ce2e7d8f2e53..8d5a6b3ad6fe 100644
--- a/third_party/git/connected.h
+++ b/third_party/git/connected.h
@@ -46,14 +46,6 @@ struct check_connected_options {
 	 * during a fetch.
 	 */
 	unsigned is_deepening_fetch : 1;
-
-	/*
-	 * If non-zero, only check the top-level objects referenced by the
-	 * wanted refs (passed in as cb_data). This is useful for partial
-	 * clones, where enumerating and excluding all promisor objects is very
-	 * slow and the commit-walk itself becomes a no-op.
-	 */
-	unsigned check_refs_only : 1;
 };
 
 #define CHECK_CONNECTED_INIT { 0 }