modernize: delete redundant void args
Summary:
Redundant void args are deleted with clang-tidy.
See https://clang.llvm.org/extra/clang-tidy/checks/modernize-redundant-void-arg.html
Reviewers: Breeze, mart
Reviewed By: mart
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D11636