Remove unused "VersionControl" entries from kdev4 samples/templates
Summary:
The actual key is "VersionControlSupport", and it is only used with
the developer kdev4 file.
Reviewers: KDevelop, kfunk
Reviewed By: KDevelop, kfunk
Subscribers: kdevelop-devel
Differential Revision: https://phabricator.kde.org/D5512