Revert "Add new @ shortcut for HEAD"

This reverts commit cdfd94837b27c220f70f032b596ea993d195488f, as it
does not just apply to "@" (and forms with modifiers like @{u}
applied to it), but also affects e.g. "refs/heads/@/foo", which it
shouldn't.

The basic idea of giving a short-hand might be good, and the topic
can be retried later, but let's revert to avoid affecting existing
use cases for now for the upcoming release.

1 files changed, 0 insertions, 4 deletions

diff --git a/refs.c b/refs.c
index 7b08a37..7922261 100644
--- a/refs.c
+++ b/refs.c
@@ -72,10 +72,6 @@ int check_refname_format(const char *refname, int flags)
 {
 	int component_len, component_count = 0;
 
-	if (!strcmp(refname, "@"))
-		/* Refname is a single character '@'. */
-		return -1;
-
 	while (1) {
 		/* We are at the start of a path component. */
 		component_len = check_refname_component(refname, flags);