Remove unused functions
Summary:
showMessage() is only declared, but never defined.
includeFolders() and fetchMountPoint(url) are not used.
Depends on D27611
Reviewers: Baloo, ngraham, davidedmundson
Reviewed By: Baloo, ngraham, davidedmundson
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D27612