cache.h: remove unnecessary includes
cache.h did not need any of these headers, and nothing that depended
upon cache.h needed them either. Simply expunge these includes.
Signed-off-by: Elijah Newren <newren@gmail.com>
Acked-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
authored by