A duplicate of an already existing section in the documentation of
git-filter-branch was added in commit f95eef15f2f8a336b9a42749f5458c841a5a5d63.
This patch removes that redundant section.
Signed-off-by: Ulrik Sverdrup <ulrik.sverdrup@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>