[PATCH v2] emacs: drop C-tab binding in hello mode, document <backtab>.

[David Bremner <david@tethera.net>]

The <backtab> binding has always been there, but the docs were
apparently mistakenly changed to say <backspace> [1]

Revert to <backtab> in the documentation.

The commit also drops the C-<tab> binding, since it seems redundant
and it interferes with tab-bar-mode.

[1]: 703dec7754da477b5683867c88cb940b8553be91.
---
 doc/notmuch-emacs.rst  | 2 +-
 emacs/notmuch-hello.el | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/doc/notmuch-emacs.rst b/doc/notmuch-emacs.rst
index 12ee25e5..22aee340 100644
--- a/doc/notmuch-emacs.rst
+++ b/doc/notmuch-emacs.rst
@@ -56,7 +56,7 @@ notmuch-hello key bindings
 ``<tab>``
     Move to the next widget (button or text entry field)
 
-``<backspace>``
+``<backtab>``
     Move to the previous widget.
 
 ``<return>``
diff --git a/emacs/notmuch-hello.el b/emacs/notmuch-hello.el
index 71487bd9..acd48c9b 100644
--- a/emacs/notmuch-hello.el
+++ b/emacs/notmuch-hello.el
@@ -702,7 +702,6 @@ with `notmuch-hello-query-counts'."
   ;; that when we modify map it does not modify widget-keymap).
   (let ((map (make-composed-keymap (list (make-sparse-keymap) widget-keymap))))
     (set-keymap-parent map notmuch-common-keymap)
-    (define-key map (kbd "<C-tab>") 'widget-backward)
     map)
   "Keymap for \"notmuch hello\" buffers.")
 
-- 
2.33.0