name-hash: retire unused index_name_exists()

db5360f3 (name-hash: refactor polymorphic index_name_exists();
2013-09-17) split index_name_exists() into index_file_exists() and
index_dir_exists() but retained index_name_exists() as a thin wrapper
to avoid disturbing possible in-flight topics. Since this change
landed in 'master' some time ago and there are no in-flight topics
referencing index_name_exists(), retire it.
Signed-off-by: NEric Sunshine <sunshine@sunshineco.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

cache.h

@@ -316,7 +316,6 @@ extern void free_name_hash(struct index_state *istate);
 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
 #define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen))
 #define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase))
-#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
@@ -467,7 +466,6 @@ extern int unmerged_index(const struct index_state *);
 extern int verify_path(const char *path);
 extern struct cache_entry *index_dir_exists(struct index_state *istate, const char *name, int namelen);
 extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase);
-extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
 extern int index_name_pos(const struct index_state *, const char *name, int namelen);
 #define ADD_CACHE_OK_TO_ADD 1		/* Ok to add */
 #define ADD_CACHE_OK_TO_REPLACE 2	/* Ok to replace file/directory */

name-hash.c

@@ -115,7 +115,7 @@ static int cache_entry_cmp(const struct cache_entry *ce1,
 {
 	/*
 	 * For remove_name_hash, find the exact entry (pointer equality); for
-	 * index_name_exists, find all entries with matching hash code and
+	 * index_file_exists, find all entries with matching hash code and
 	 * decide whether the entry matches in same_name.
 	 */
 	return remove ? !(ce1 == ce2) : 0;
@@ -227,13 +227,6 @@ struct cache_entry *index_file_exists(struct index_state *istate, const char *na
 	return NULL;
 }
 
-struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int icase)
-{
-	if (namelen > 0 && name[namelen - 1] == '/')
-		return index_dir_exists(istate, name, namelen - 1);
-	return index_file_exists(istate, name, namelen, icase);
-}
-
 void free_name_hash(struct index_state *istate)
 {
 	if (!istate->name_hash_initialized)