[ 'dropTable', 'valid_tag' ],
[ 'dropTable', 'tag_summary' ],
[ 'dropField', 'protected_titles', 'pt_reason', 'patch-drop-comment-fields.sql' ],
[ 'dropTable', 'valid_tag' ],
[ 'dropTable', 'tag_summary' ],
[ 'dropField', 'protected_titles', 'pt_reason', 'patch-drop-comment-fields.sql' ],