bug#9332: [24.0.50]; Tutorial complains about C-d being rebound

[Ulrich Mueller]

The TUTORIAL complains about C-d being rebound:

   Standard Key   Command                     In Your Emacs   
   C-d            delete-forward-char         <deletechar>     more info

To reproduce:

   $ emacs -Q
   C-h t

During some period in 2010, C-d had been rebound from delete-char to
delete-forward-char, but that was reverted later. Looks like the
present problem is a remnant of that change.

Proposed fix:
Commit 101030 [1] should be reverted.

[1] http://bzr.savannah.gnu.org/lh/emacs/trunk/revision/101030