No external callers reference lock_ref_sha1 any more so lets declare it static.

Signed-off-by: Ronnie Sahlberg <sahlb...@google.com>
---
 refs.c | 2 +-
 refs.h | 3 ---
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/refs.c b/refs.c
index cb7d69f..eebcacb 100644
--- a/refs.c
+++ b/refs.c
@@ -2130,7 +2130,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char 
*refname,
        return NULL;
 }
 
-struct ref_lock *lock_ref_sha1(const char *refname, const unsigned char 
*old_sha1)
+static struct ref_lock *lock_ref_sha1(const char *refname, const unsigned char 
*old_sha1)
 {
        char refpath[PATH_MAX];
        if (check_refname_format(refname, 0))
diff --git a/refs.h b/refs.h
index bc8a95b..b14fe86 100644
--- a/refs.h
+++ b/refs.h
@@ -132,9 +132,6 @@ extern int ref_exists(const char *);
  */
 extern int peel_ref(const char *refname, unsigned char *sha1);
 
-/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/
-extern struct ref_lock *lock_ref_sha1(const char *refname, const unsigned char 
*old_sha1);
-
 /** Locks any ref (for 'HEAD' type refs). */
 #define REF_NODEREF    0x01
 extern struct ref_lock *lock_any_ref_for_update(const char *refname,
-- 
1.9.1.528.g98b8868.dirty

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