Merge pull request moodle#1262 from moodle/obsolete-legacy-page-list

[repo] Update list of obsolete pages

Author: sarjona

data/obsoletePages.json

@@ -448,7 +448,6 @@
   "Moodle Workplace 3.8 release notes",
   "Moodle Workplace 3.9 release notes",
   "Moodle Workplace 4.0 release notes",
-  "Moodle Workplace 4.1 release notes",
   "Moodle Workplace releases",
   "Moodle and PHP 7.0 details",
   "Moodle dev mailing list",