The `parse_refname` function accepts a `struct strbuf *input` argument
that isn't used at all. As we're about to convert commands to not use a
strbuf anymore but instead an end pointer, let's drop this argument now
to make the converting commit easier to review.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 builtin/update-ref.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index 559475681e..6f2aba916b 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -50,7 +50,7 @@ static const char *parse_arg(const char *next, struct strbuf *arg)
  * the argument.  Die if C-quoting is malformed or the reference name
  * is invalid.
  */
-static char *parse_refname(struct strbuf *input, const char **next)
+static char *parse_refname(const char **next)
 {
 	struct strbuf ref = STRBUF_INIT;
 
@@ -189,7 +189,7 @@ static const char *parse_cmd_update(struct ref_transaction *transaction,
 	if (!skip_prefix(next, " ", &next))
 		die("update: missing space after command");
 
-	refname = parse_refname(input, &next);
+	refname = parse_refname(&next);
 	if (!refname)
 		die("update: missing <ref>");
 
@@ -226,7 +226,7 @@ static const char *parse_cmd_create(struct ref_transaction *transaction,
 	if (!skip_prefix(next, " ", &next))
 		die("create: missing space after command");
 
-	refname = parse_refname(input, &next);
+	refname = parse_refname(&next);
 	if (!refname)
 		die("create: missing <ref>");
 
@@ -262,7 +262,7 @@ static const char *parse_cmd_delete(struct ref_transaction *transaction,
 	if (!skip_prefix(next, " ", &next))
 		die("delete: missing space after command");
 
-	refname = parse_refname(input, &next);
+	refname = parse_refname(&next);
 	if (!refname)
 		die("delete: missing <ref>");
 
@@ -300,7 +300,7 @@ static const char *parse_cmd_verify(struct ref_transaction *transaction,
 	if (!skip_prefix(next, " ", &next))
 		die("verify: missing space after command");
 
-	refname = parse_refname(input, &next);
+	refname = parse_refname(&next);
 	if (!refname)
 		die("verify: missing <ref>");
 
-- 
2.26.0