Author: Zig Tan
MDL-61397 blocks: Add null_providers for blocks with no user data
http://git.moodle.org/gw?p=moodle.git;a=commit;h=80d7a98d8406dbff58b388ab89cf9e6d4fc5dee6
http://github.com/moodle/moodle/commit/80d7a98d8406dbff58b388ab89cf9e6d4fc5dee6
+ 3.4 en [privacy:metadata,block_activity_modules]
+ 3.4 en [privacy:metadata,block_activity_results]
+ 3.4 en [privacy:metadata,block_admin_bookmarks]
+ 3.4 en [privacy:metadata,block_badges]
+ 3.4 en [privacy:metadata,block_blog_menu]
+ 3.4 en [privacy:metadata,block_blog_recent]
+ 3.4 en [privacy:metadata,block_blog_tags]
+ 3.4 en [privacy:metadata,block_calendar_month]
+ 3.4 en [privacy:metadata,block_calendar_upcoming]
+ 3.4 en [privacy:metadata,block_completionstatus]
+ 3.4 en [privacy:metadata,block_course_list]
+ 3.4 en [privacy:metadata,block_course_summary]
+ 3.4 en [privacy:metadata,block_feedback]
+ 3.4 en [privacy:metadata,block_globalsearch]
+ 3.4 en [privacy:metadata,block_glossary_random]
+ 3.4 en [privacy:metadata,block_login]
+ 3.4 en [privacy:metadata,block_lp]
+ 3.4 en [privacy:metadata,block_mentees]
+ 3.4 en [privacy:metadata,block_mnet_hosts]
+ 3.4 en [privacy:metadata,block_myoverview]
+ 3.4 en [privacy:metadata,block_myprofile]
+ 3.4 en [privacy:metadata,block_navigation]
+ 3.4 en [privacy:metadata,block_news_items]
+ 3.4 en [privacy:metadata,block_online_users]
+ 3.4 en [privacy:metadata,block_participants]
+ 3.4 en [privacy:metadata,block_private_files]
+ 3.4 en [privacy:metadata,block_quiz_results]
+ 3.4 en [privacy:metadata,block_search_forums]
+ 3.4 en [privacy:metadata,block_section_links]
+ 3.4 en [privacy:metadata,block_selfcompletion]
+ 3.4 en [privacy:metadata,block_settings]
+ 3.4 en [privacy:metadata,block_site_main_menu]
+ 3.4 en [privacy:metadata,block_social_activities]
+ 3.4 en [privacy:metadata,block_tag_flickr]
+ 3.4 en [privacy:metadata,block_tag_youtube]
+ 3.4 en [privacy:metadata,block_tags]