xdiff: remove duplicate headers from xhistogram.c
authorCarlo Marcelo Arenas Belón <carenas@gmail.com>
Sun, 28 Jul 2019 20:07:23 +0000 (13:07 -0700)
committerJunio C Hamano <gitster@pobox.com>
Mon, 29 Jul 2019 04:51:21 +0000 (21:51 -0700)
8c912eea94 ("teach --histogram to diff", 2011-07-12) included them, but
were already part of xinclude.h

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
No differences found