refs: drop `git_default_branch_name()`

The `git_default_branch_name()` function is a thin wrapper around
`repo_default_branch_name()` with two differences:

  - We implicitly rely on `the_repository`.

  - We cache the default branch name.

None of the callsites of `git_default_branch_name()` are hot code paths
though, so the caching of the branch name is not really required.

Refactor the callsites to use `repo_default_branch_name()` instead and
drop `git_default_branch_name()`, thus getting rid of one more case
where we rely on `the_repository`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/refs.h b/refs.h
index e043b6cfa3..e906dbb44a 100644
--- a/refs.h
+++ b/refs.h
@@ -169,10 +169,8 @@ int dwim_log(const char *str, int len, struct object_id *oid, char **ref);
 /*
  * Retrieves the default branch name for newly-initialized repositories.
  *
- * The return value of `repo_default_branch_name()` is an allocated string. The
- * return value of `git_default_branch_name()` is a singleton.
+ * The return value is an allocated string.
  */
-const char *git_default_branch_name(int quiet);
 char *repo_default_branch_name(struct repository *r, int quiet);
 
 /*