remote: relocate valid_remote_name

Move the `valid_remote_name()` function from the refspec subsystem to
the remote subsystem to better align with the separation of concerns.

Signed-off-by: Meet Soni <meetsoni3017@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

refspec.c

@@ -236,16 +236,6 @@ int valid_fetch_refspec(const char *fetch_refspec_str)
 	return ret;
 }
 
-int valid_remote_name(const char *name)
-{
-	int result;
-	struct strbuf refspec = STRBUF_INIT;
-	strbuf_addf(&refspec, "refs/heads/test:refs/remotes/%s/test", name);
-	result = valid_fetch_refspec(refspec.buf);
-	strbuf_release(&refspec);
-	return result;
-}
-
 void refspec_ref_prefixes(const struct refspec *rs,
 			  struct strvec *ref_prefixes)
 {

refspec.h

@@ -61,7 +61,6 @@ void refspec_appendn(struct refspec *rs, const char **refspecs, int nr);
 void refspec_clear(struct refspec *rs);
 
 int valid_fetch_refspec(const char *refspec);
-int valid_remote_name(const char *name);
 
 struct strvec;
 /*

remote.c

@@ -3029,3 +3029,13 @@ char *relative_url(const char *remote_url, const char *url,
 	free(out);
 	return strbuf_detach(&sb, NULL);
 }
+
+int valid_remote_name(const char *name)
+{
+	int result;
+	struct strbuf refspec = STRBUF_INIT;
+	strbuf_addf(&refspec, "refs/heads/test:refs/remotes/%s/test", name);
+	result = valid_fetch_refspec(refspec.buf);
+	strbuf_release(&refspec);
+	return result;
+}

remote.h

@@ -463,4 +463,6 @@ void apply_push_cas(struct push_cas_option *, struct remote *, struct ref *);
 char *relative_url(const char *remote_url, const char *url,
 		   const char *up_path);
 
+int valid_remote_name(const char *name);
+
 #endif