org.el: Use `dolist' instead of `mapc' + `lambda'

org.el: Use `dolist' instead of `mapc' + `lambda'

* lisp/org.el (org-babel-do-load-languages):
(org-load-modules-maybe):
(org-mode-transpose-word-syntax-table):
(org-cycle-internal-local):
(org-remove-empty-overlays-at):
(org-reinstall-markers-in-region):
(orgstruct++-mode):
(orgstruct++-mode):
(org-offer-links-in-entry):
(org-refile-cache-clear):
(org-revert-all-org-buffers):
(org-ctrl-c-ctrl-c):
(org-in-block-p):
(org-uniquify-alist):
(org-unindent-buffer):
(org-imenu-get-tree): Use `dolist' instead of `mapc' + `lambda'.

(org-show-block-all):
(org-remove-occur-highlights):
(org-remove-inline-images):
(org-speed-command-help):
(org-require-autoloaded-modules): Use #'fun instead of 'fun for clarity.