emacs: Autoload hooks instead of putting them in 'guix-init'.

* emacs/guix-init.el: Move adding hooks to...
* emacs/guix-build-log.el: ... here.
* emacs/guix-devel.el: ... and here.

emacs/guix-build-log.el

@@ -366,6 +366,9 @@ programmatically using hooks:
   (guix-find-file-or-url file-or-url)
   (guix-build-log-mode))
 
+;;;###autoload
+(add-hook 'shell-mode-hook 'guix-build-log-minor-mode-activate-maybe)
+
 ;;;###autoload
 (add-to-list 'auto-mode-alist
              ;; Regexp for log files (usually placed in /var/log/guix/...)

emacs/guix-devel.el

@@ -364,6 +364,9 @@ bindings:
   (when guix-devel-activate-mode
     (guix-devel-mode)))
 
+;;;###autoload
+(add-hook 'scheme-mode-hook 'guix-devel-activate-mode-maybe)
+
 
 (defvar guix-devel-emacs-font-lock-keywords
   (eval-when-compile

emacs/guix-init.el

@@ -1,7 +1,4 @@
 (require 'guix-autoloads)
 (require 'guix-emacs)
 
-(add-hook 'scheme-mode-hook 'guix-devel-activate-mode-maybe)
-(add-hook 'shell-mode-hook 'guix-build-log-minor-mode-activate-maybe)
-
 (provide 'guix-init)