refs: remove dead for_each_*_submodule()

These are used in revision.c. After the last patch they are replaced
with the refs_ version. Delete them.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: pclouds

Documentation/technical/api-ref-iteration.txt

@@ -32,11 +32,8 @@ Iteration functions
 
 * `for_each_glob_ref_in()` the previous and `for_each_ref_in()` combined.
 
-* `head_ref_submodule()`, `for_each_ref_submodule()`,
-  `for_each_ref_in_submodule()`, `for_each_tag_ref_submodule()`,
-  `for_each_branch_ref_submodule()`, `for_each_remote_ref_submodule()`
-  do the same as the functions described above but for a specified
-  submodule.
+* Use `refs_` API for accessing submodules. The submodule ref store could
+  be obtained with `get_submodule_ref_store()`.
 
 * `for_each_rawref()` can be used to learn about broken ref and symref.
 

refs.c

@@ -336,12 +336,6 @@ int for_each_tag_ref(each_ref_fn fn, void *cb_data)
 	return refs_for_each_tag_ref(get_main_ref_store(), fn, cb_data);
 }
 
-int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
-{
-	return refs_for_each_tag_ref(get_submodule_ref_store(submodule),
-				     fn, cb_data);
-}
-
 int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
 {
 	return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data);
@@ -352,12 +346,6 @@ int for_each_branch_ref(each_ref_fn fn, void *cb_data)
 	return refs_for_each_branch_ref(get_main_ref_store(), fn, cb_data);
 }
 
-int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
-{
-	return refs_for_each_branch_ref(get_submodule_ref_store(submodule),
-					fn, cb_data);
-}
-
 int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
 {
 	return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data);
@@ -1254,15 +1242,6 @@ int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
 	return 0;
 }
 
-int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
-{
-	struct ref_store *refs = get_submodule_ref_store(submodule);
-
-	if (!refs)
-		return -1;
-	return refs_head_ref(refs, fn, cb_data);
-}
-
 int head_ref(each_ref_fn fn, void *cb_data)
 {
 	return refs_head_ref(get_main_ref_store(), fn, cb_data);
@@ -1323,11 +1302,6 @@ int for_each_ref(each_ref_fn fn, void *cb_data)
 	return refs_for_each_ref(get_main_ref_store(), fn, cb_data);
 }
 
-int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
-{
-	return refs_for_each_ref(get_submodule_ref_store(submodule), fn, cb_data);
-}
-
 int refs_for_each_ref_in(struct ref_store *refs, const char *prefix,
 			 each_ref_fn fn, void *cb_data)
 {
@@ -1349,13 +1323,6 @@ int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsig
 			       prefix, fn, 0, flag, cb_data);
 }
 
-int for_each_ref_in_submodule(const char *submodule, const char *prefix,
-			      each_ref_fn fn, void *cb_data)
-{
-	return refs_for_each_ref_in(get_submodule_ref_store(submodule),
-				    prefix, fn, cb_data);
-}
-
 int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix,
 			     each_ref_fn fn, void *cb_data,
 			     unsigned int broken)

refs.h

@@ -304,16 +304,6 @@ int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data);
 int for_each_glob_ref_in(each_ref_fn fn, const char *pattern,
 			 const char *prefix, void *cb_data);
 
-int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
-int for_each_ref_submodule(const char *submodule,
-			   each_ref_fn fn, void *cb_data);
-int for_each_ref_in_submodule(const char *submodule, const char *prefix,
-			      each_ref_fn fn, void *cb_data);
-int for_each_tag_ref_submodule(const char *submodule,
-			       each_ref_fn fn, void *cb_data);
-int for_each_branch_ref_submodule(const char *submodule,
-				  each_ref_fn fn, void *cb_data);
-
 int head_ref_namespaced(each_ref_fn fn, void *cb_data);
 int for_each_namespaced_ref(each_ref_fn fn, void *cb_data);