Remove .clang-format
Summary:
It's an ignored file that was committed to the repo at some point.
Because it's automatically generated and replaces the version commited to the repo when the project is built, it keeps causing kdesrc-build to report build failures for this project.
Reviewers: ivan, Plasma
Reviewed By: ivan, Plasma
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D29139