fixup! Carry non-locking status value in the environment.

As we now rely on the new --no-optional-locks feature, which is itself
implemented via an environment variable, we no longer need to implement
this ourselves.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

builtin/commit.c

@@ -1406,11 +1406,6 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 	finalize_colopts(&s.colopts, -1);
 	finalize_deferred_config(&s);
 
-	if (no_lock_index)
-		setenv("GIT_LOCK_INDEX", "false", 1);
-	else if (!git_parse_maybe_bool(getenv("GIT_LOCK_INDEX")))
-		no_lock_index = 1;
-
 	handle_untracked_files_arg(&s);
 	handle_ignored_arg(&s);