Git commits in Moodle 3.5.x by João Umberto Ciocca de Almeida

commit 6bc8a2e11fd0b528cc788722aeb0414143f9bf1d
Author: João Umberto Ciocca de Almeida <joaociocca@users.noreply.github.com>
Date:   Thu, 09 Nov 2017 04:36:03 +0800
Tag:    v3.5.0-beta

MDL-60654 calendar: Clean up lines 140-154