Reduce some duplication in doc/misc/Makefile.in

Reduce some duplication in doc/misc/Makefile.in

* doc/misc/Makefile.in (ada_mode_deps, auth_deps, autotype_deps)
(bovine_deps, calc_deps, ccmode_deps, cl_deps, dbus_deps)
(dired_x_deps, ebrowse_deps, ede_deps, ediff_deps, edt_deps)
(eieio_deps, emacs_gnutls_deps, emacs_mime_deps, epa_deps)
(erc_deps, ert_deps, eshell_deps, eudc_deps, faq_deps)
(flymake_deps, forms_deps, gnus_deps, htmlfontify_deps)
(idlwave_deps, ido_deps, info_deps, mairix_el_deps, message_deps)
(mh_e_deps, newsticker_deps, nxml_mode_deps, org_deps)
(pcl_cvs_deps, pgg_deps, rcirc_deps, reftex_deps, remember_deps)
(sasl_deps, sc_deps, semantic_deps, ses_deps, sieve_deps)
(smtpmail_deps, speedbar_deps, srecode_deps, todo_mode_deps)
(tramp_deps, url_deps, vip_deps, viper_deps, widget_deps)
(wisent_deps, woman_deps): New variables.  Use throughout.