remove settings that call xdg-user-dir
    
    Due to CVE-2019-14744, KConfig dropped support for running shell
    commands from configuration files.
    
    usr/share/kde-settings/kde-profile/default/share/config/kdeglobals,
    usr/share/kde-settings/kde-profile/minimal/share/config/kdeglobals:
    Remove the [Paths] section. The Desktop and Documents directories that
    were set there are already detected by default by kdelibs 4, and now
    also by kdelibs3 >= 3.5.10-101. The Trash setting was already commented
    out.
    
    usr/share/kde-settings/kde-profile/default/xdg/baloofilerc: Delete the
    commented-out folders setting that attempts to call xdg-user-dir.