Merge branch 'sb/refs-code-cleanup'

* sb/refs-code-cleanup:
  cache: remove unused function 'have_git_dir'
  refs: remove unused function invalidate_ref_cache

cache.h

@@ -398,7 +398,6 @@ extern int is_bare_repository(void);
 extern int is_inside_git_dir(void);
 extern char *git_work_tree_cfg;
 extern int is_inside_work_tree(void);
-extern int have_git_dir(void);
 extern const char *get_git_dir(void);
 extern int is_git_directory(const char *path);
 extern char *get_object_directory(void);

environment.c

@@ -155,11 +155,6 @@ int is_bare_repository(void)
 	return is_bare_repository_cfg && !get_git_work_tree();
 }
 
-int have_git_dir(void)
-{
-	return !!git_dir;
-}
-
 const char *get_git_dir(void)
 {
 	if (!git_dir)

refs.c

@@ -947,13 +947,6 @@ static struct ref_cache *get_ref_cache(const char *submodule)
 	return refs;
 }
 
-void invalidate_ref_cache(const char *submodule)
-{
-	struct ref_cache *refs = get_ref_cache(submodule);
-	clear_packed_ref_cache(refs);
-	clear_loose_ref_cache(refs);
-}
-
 /* The length of a peeled reference line in packed-refs, including EOL: */
 #define PEELED_LINE_LENGTH 42
 

refs.h

@@ -165,14 +165,6 @@ extern void unlock_ref(struct ref_lock *lock);
 /** Writes sha1 into the ref specified by the lock. **/
 extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
 
-/*
- * Invalidate the reference cache for the specified submodule.  Use
- * submodule=NULL to invalidate the cache for the main module.  This
- * function must be called if references are changed via a mechanism
- * other than the refs API.
- */
-extern void invalidate_ref_cache(const char *submodule);
-
 /** Setup reflog before using. **/
 int log_ref_setup(const char *ref_name, char *logfile, int bufsize);