Revert "Notification is sent only if necessary. It means that if no comment, the user must have read access on at least one updated field."

This reverts commit c8bfe44f04d384ea3ca38b51f8da4dce746a698b.

Change-Id: Iae49df02bdc6ed81634eb109d0ca469cf8573350
Merge commit 'refs/changes/54/1554/2' of http://gerrit.tuleap.net/tuleap into tuleap-stable-master

* http://gerrit.tuleap.net/tuleap:
  Revert "Notification is sent only if necessary. It means that if no comment, the user must have read access on at least one updated field."

Change-Id: I88a5e76a5a5019dce52d45cee8b5eb7fec7e739d
Tuleap 6.7.99.32

Change-Id: I654accfe16bdc40bcc7508b34058b4fc1e409c97