Show the Delete context menu entry even when disabled
Summary:
This is consistent with the HIG, and the 'Rename' entry in
the context menu already behaves like that.
Test Plan:
Right click on /home. The context menu should contained
the 'Delete' entry, but it should be disabled.
Reviewers: Dolphin, VDG, ngraham
Reviewed By: Dolphin, VDG, ngraham
Subscribers: ngraham, romangg, kfm-devel
Tags: Dolphin
Differential Revision: https://phabricator.kde.org/D17012