Revert "MDL-xxxx show appropriate instance status on user enrolments page"

This was incorrectly integrated

This reverts commit 0431cc0e16d9855b0adcc7b4612838f6407f462f.
MDL-36600 Add missing sesskey check when previewing the message
MDL-36741 mod_forum: fixed the function forum_rss_newstuff that was using count_records_sql incorrectly as well as generating RSS content when no data exists
Merge branch 'MDL-36741_m23' of git://github.com/markn86/moodle into MOODLE_23_STABLE
MDL-37467 Do not provide blog posts via RSS when blogging is disabled
Merge branch 'MDL-37467-blogs_23' of git://github.com/mudrd8mz/moodle into MOODLE_23_STABLE
MDL-37430 Course - Make modules created in hidden sections visible when section is made visible.

Conflicts:

	course/lib.php