diff: remove "diff-files -q" in a version of Git in a distant future

This was inherited from "show-diff -q" that was invented to tell
comparison between the index and the working tree to ignore only
removals in 2005.

These days, it is spelled as "--diff-filter=d".

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 8 deletions

diff --git a/diff.c b/diff.c
index 78819ba..2d0b5e3 100644
--- a/diff.c
+++ b/diff.c
@@ -3570,14 +3570,6 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt)
 	return 0;
 }
 
-/* Used only by "diff-files" and "diff --no-index" */
-void handle_deprecated_show_diff_q(struct diff_options *opt)
-{
-	warning("'diff -q' and 'diff-files -q' are deprecated.");
-	warning("Use 'diff --diff-filter=d' instead to ignore deleted filepairs.");
-	parse_diff_filter_opt("d", opt);
-}
-
 int diff_opt_parse(struct diff_options *options, const char **av, int ac)
 {
 	const char *arg = av[0];