fixup! Handle the branch.<name>.rebase value 'interactive'

This commit became obsolete when 'pull' became a builtin, and was
redone in a patch series to teach the builtin pull about
--rebase=interactive that has landed in upstream Git already.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Documentation/config.txt

@@ -886,7 +886,6 @@ branch.<name>.rebase::
 	instead of merging the default branch from the default remote when
 	"git pull" is run. See "pull.rebase" for doing this in a non
 	branch-specific manner.
-	When the value is `interactive`, the rebase is run in interactive mode.
 +
 When preserve, also pass `--preserve-merges` along to 'git rebase'
 so that locally committed merge commits will not be flattened