Remove leftover function declaration
diff --git a/include/git2/remote.h b/include/git2/remote.h
index f4cd1cb..b9cf86e 100644
--- a/include/git2/remote.h
+++ b/include/git2/remote.h
@@ -357,21 +357,6 @@ GIT_EXTERN(int) git_remote_list(git_strarray *out, git_repository *repo);
GIT_EXTERN(void) git_remote_check_cert(git_remote *remote, int check);
/**
- * Set a credentials acquisition callback for this remote. If the remote is
- * not available for anonymous access, then you must set this callback in order
- * to provide credentials to the transport at the time of authentication
- * failure so that retry can be performed.
- *
- * @param remote the remote to configure
- * @param cred_acquire_cb The credentials acquisition callback to use (defaults
- * to NULL)
- */
-GIT_EXTERN(void) git_remote_set_cred_acquire_cb(
- git_remote *remote,
- git_cred_acquire_cb cred_acquire_cb,
- void *payload);
-
-/**
* Sets a custom transport for the remote. The caller can use this function
* to bypass the automatic discovery of a transport by URL scheme (i.e.
* http://, https://, git://) and supply their own transport to be used