Revert "pointer to a todo"

This reverts commit d884cdfbed61fa451c54562711ab5a12f41a7f7a.

todo is not ready yet

1 files changed, 1 insertions, 12 deletions

diff --git a/doc/backends.mdwn b/doc/backends.mdwn
index f69f655d6..d26cadce5 100644
--- a/doc/backends.mdwn
+++ b/doc/backends.mdwn
@@ -3,9 +3,7 @@ The file checked into git symlinks to the key. This key can later be used
 to retrieve the file's content (its value).
 
 Multiple pluggable key-value backends are supported, and a single repository
-can use different ones for different files. 
-
-These are the recommended backends to use.
+can use different ones for different files.
 
 * `SHA256E` -- The default backend for new files, combines a 256 bit SHA-2
   hash of the file's content with the file's extension. This allows
@@ -22,10 +20,6 @@ These are the recommended backends to use.
 * `SKEIN512`, `SKEIN512E`, `SKEIN256`, `SKEIN256E`
   -- [Skein hash](http://en.wikipedia.org/wiki/Skein_hash),
   a well-regarded SHA3 hash competition finalist.
-
-The backends below do not guarantee cryptographically that the
-content of an annexed file remains unchanged.
-
 * `SHA1`, `SHA1E`, `MD5`, `MD5E` -- Smaller hashes than `SHA256`
    for those who want a checksum but are not concerned about security.
 * `WORM` ("Write Once, Read Many") -- This assumes that any file with
@@ -36,11 +30,6 @@ content of an annexed file remains unchanged.
   It's generated when using eg, `git annex addurl --fast`, when the file
   content is not available for hashing.
 
-If you want to be able to prove that you're working with the same file
-contents that were checked into a repository earlier, you should avoid
-using the non-cryptographically-secure backends, and will need to use
-signed git commits. See [[tips/using_signed_git_commits]] for details.
-
 Note that the various 512 and 384 length hashes result in long paths,
 which are known to not work on Windows. If interoperability on Windows is a
 concern, avoid those.